In 1994, bronze artist Steve Johnson of Port Townsend, WA began to make one-off puzzles from spattered droplet shapes in silicon bronze as part of his developing hobby, under the name Paracelsus Puzzles.10 pcs. stamped "U" in Silicon Bronze fit into wood tray.  Each piece fits into one or more indentations of neighboring pieces.  A rare & mind-bending puzzle of unique form, the solution is trickier than expected on first look.Paracelsus Puzzles are each unique, one-of-a-kind castings poured f...

Crafted in aluminum, high precision, 5 pcs., #5 in popular Mental Block series.  Robert Rose is one of the most highly regarded machinists of the past several decades.  Note markings on inside ring "VORTEX  MBP 5".  Visit  https://www.themetagrobologist.co.uk/robert-rose-mechanical-puzzles/ for more info.The feel of this puzzle is unique, and begs to be played with...  All surfaces rounded, with a toroidal inside bevel.A rarity on the auction block.Mahalo!International Shipping AVAILABLE...

We are sold out of these and do not expect to make any more in the future.*******Gift Burr has the familiar shape of the traditional six piece star burr. Unlike the traditional burr, this puzzle is anything but simple to assemble. The notches are irregular and create a lovely parity issue where every time you attempt the last piece it simply doesn't line up. Not impossibly challenging for an experienced puzzler, this one is nonetheless trickier than it looks. Construction of this puzzle is excel...

Three Cubes is an award-winning design, having placed in the 2018 IPP Design Competition. The three identical pieces must be assembled to form three solid cubes. This apparently simple task is complicated by the addition of magnets on each face, whose polarity significantly impacts the process. Very fun, and pocket-sized as well! Originally constructed with all three pieces made from the same wood type, this unique version consists of three different Tamarind, Canarywood, and Leopardwood pieces....

Impossible Triangle of Three Cubes is actually not impossible, it's quite approachable in fact. Three odd shaped pieces come together to form three joined cubes. A fun assembly which displays interestingly. Construction of this puzzle is extremely precise, with the pieces sliding together perfectly once the solution is found. This puzzle is shipped disassembled.These puzzles are extras and oddballs that have accumulated in the shop.  Sometimes when we make a run of puzzles we will have a few wi...

This simple cube is easy to solve, but I found the design interesting. Three different pieces use coordinate motion, sliding together neatly. Zebrawood was used for it's similarity between end and sidegrain...just looks nicer overall.These puzzles are extras and oddballs that have accumulated in the shop.  Sometimes when we make a run of puzzles we will have a few with different woods, etc. which are too much trouble to list individually on the website.  These puzzles are all in new condition ...

We are sold out of these and do not expect to make any more in the future.*******Gift Burr has the familiar shape of the traditional six piece star burr. Unlike the traditional burr, this puzzle is anything but simple to assemble. The notches are irregular and create a lovely parity issue where every time you attempt the last piece it simply doesn't line up. Not impossibly challenging for an experienced puzzler, this one is nonetheless trickier than it looks. Construction of this puzzle is excel...

Slideways is one of my favorite puzzles ever. Three simple, identical pieces combine to form a three dimensional symmetrical cross shape. Seems easy, but there's a tricky concept that the solver needs to grasp to make it happen. Once discovered the movement is addicting! This puzzle is shipped unassembled.These puzzles are extras and oddballs that have accumulated in the shop.  Sometimes when we make a run of puzzles we will have a few with different woods, etc. which are too much trouble to li...

Boron is a moderately difficult puzzle that displays like a piece of sculpture once it's solved. The 12 pieces are made with contrasting hardwoods and precision-crafted in our North Carolina workshop. Its interlocking nature means that several pieces have to shift around to release the first piece. This puzzle is a lot of fun and a great addition to anyone's collection, beginner or advanced. Boron is delivered disassembled.These puzzles are extras and oddballs that have accumulated in the shop.Â...

Slideways is one of my favorite puzzles ever. Three simple, identical pieces combine to form a three dimensional symmetrical cross shape. Seems easy, but there's a tricky concept that the solver needs to grasp to make it happen. Once discovered the movement is addicting! This puzzle is shipped unassembled.These puzzles are extras and oddballs that have accumulated in the shop.  Sometimes when we make a run of puzzles we will have a few with different woods, etc. which are too much trouble to li...

These are the last of the Stumbling Blocks and we do not anticipate making any more.*****************Stumbling Blocks is a brilliant puzzle that I've been wanting to make for a while. When Pit mentioned that he had a more difficult version I jumped at the chance to make it. Packing the four pieces into the frame is the goal, and the way to get there is amazing. I can't tell much about this puzzle without giving things away, but I'll say that it has one of the best "Ah-ha!" moments I've seen for ...

"Rockeman" was Eric Fuller's 2019 IPP Design Competition Entry.  It was designed after Eric completed work on a couple angled stick Coffin Designs, and found a new shape using the same geometry.  Because this shape uses more pieces in fewer axes than usual in puzzles of this style, it was very challenging to come up with a unique piece set.  Most of these types of puzzles are an assembly of pieces made with two full length subcomponents.  Rocketman uses new, unique piece constraints to crea...

"Rockeman" was Eric Fuller's 2019 IPP Design Competition Entry.  It was designed after Eric completed work on a couple angled stick Coffin Designs, and found a new shape using the same geometry.  Because this shape uses more pieces in fewer axes than usual in puzzles of this style, it was very challenging to come up with a unique piece set.  Most of these types of puzzles are an assembly of pieces made with two full length subcomponents.  Rocketman uses new, unique piece constraints to crea...

"Rocketman" was Eric Fuller's 2019 IPP Design Competition Entry.  It was designed after Eric completed work on a couple angled stick Coffin Designs, and found a new shape using the same geometry.Because this shape uses more pieces in fewer axes than usual in puzzles of this style, it was very challenging to come up with a unique piece set.  Most of these types of puzzles are an assembly of pieces made with two full length subcomponents.  Rocketman uses new, unique piece constraints to create...

Three Cubes is an award-winning design, having placed in the 2018 IPP Design Competition. The three identical pieces must be assembled to form three solid cubes. This apparently simple task is complicated by the addition of magnets on each face, whose polarity significantly impacts the process. Very fun, and pocket-sized as well! Originally constructed with all three pieces made from the same wood type, this unique version consists of three different Tamarind, Canarywood, and Leopardwood pieces....

It's no secret that I love cube puzzles, and Andrey's "Repair the Cube" is an excellent one! Two internal pieces dance around the constraints of a truncated cage...the name asks you to position those pieces in such a way that they are contained within the cube and also repair the missing corner bits. With a level 11.10 solution, this is no easy task. onstruction of this puzzle was trickier than a 4x4 cube...this 5x5 has many more pieces and levels of interlock. Originally constructed using Wenge...

These are the last of the Stumbling Blocks and we do not anticipate making any more.*****************Stumbling Blocks is a brilliant puzzle that I've been wanting to make for a while. When Pit mentioned that he had a more difficult version I jumped at the chance to make it. Packing the four pieces into the frame is the goal, and the way to get there is amazing. I can't tell much about this puzzle without giving things away, but I'll say that it has one of the best "Ah-ha!" moments I've seen for ...

An exciting idea by Alfons, the Two Face Three puzzle combines six standard burr pieces with an unusual cage. The outer cage contains an inner shuttle cage that articulates independently. Very unusual movement and a difficult level 20 solution make this a must have for anyone interested in unique burr puzzles. Construction of this puzzle is outstanding, with a lot of detail work involved. The outer shell uses same species slipfeathers for looks and strength. The inside shuttle and burr pieces ar...

These are the last of the Stumbling Blocks and we do not anticipate making any more.*****************Stumbling Blocks is a brilliant puzzle that I've been wanting to make for a while. When Pit mentioned that he had a more difficult version I jumped at the chance to make it. Packing the four pieces into the frame is the goal, and the way to get there is amazing. I can't tell much about this puzzle without giving things away, but I'll say that it has one of the best "Ah-ha!" moments I've seen for ...

These are the last of the Stumbling Blocks and we do not anticipate making any more.*****************Stumbling Blocks is a brilliant puzzle that I've been wanting to make for a while. When Pit mentioned that he had a more difficult version I jumped at the chance to make it. Packing the four pieces into the frame is the goal, and the way to get there is amazing. I can't tell much about this puzzle without giving things away, but I'll say that it has one of the best "Ah-ha!" moments I've seen for ...