Loopy cube, beautifully made by Brian Menold in Osage Orange and Wenge, in 2014. Design by Tom Jolly. A fairly normal 4x4x4 cube, with a loop. Only 1 rotation needed. It's shown at http://puzzlewillbeplayed.com/444/LoopyCube/. Weighs 9 ounces without packing.

The object is to remove the coin. Less than 5 Coin Boxes were made in 1994. An original design, not a copy of an existing design. It is designed for a U.S. nickel coin (5 cents). Easy to medium difficulty.

Robert Sandfield's IPP 23 exchange puzzle

Seventh in the Karakuri Creation Group's "Creative Secret Box Series" of 2003. Designed by Hiroshi Iwahara & crafted by Tatuo Miyamoto. Box is in excellent, original unused mint condition. Includes original box and solution card.This is a great 12 move box with 2 secret compartments. Inspired by Ninomiya's 4 move Push Up Box but has 8 additional moves and one additional compartment. A very nice box. Three versions of the box were made, all the same except for their slightly different exte...

Stewart Coffin's Convolution by Mark McCallum

Stewart Coffin's Involute by Mark McCallum

Free the coin from the safe.

Includes original plastic box and info sheet.If the buyer chooses to be invoiced through Paypal, then Paypal fees of 3.98% will be added to the price. Buyer assumes all shipping fees.

i-gami was an interesting set of folding triangular, square, hexagonal and pentagonal construction tiles that you can crease and snap together to make all sorts of shapes. There are 200 pieces in the box. I meant to make all sorts of puzzle prototypes out of them, but never really got around to it. Weighs 1 lb 3 oz before packing.

A collection of eight tray-type puzzles, each worthy of a posting of its own but easier to ship as a group! They are:-Kitchen Floor by William WaiteHeart by William WaiteDown Under by Brian YoungLean 2 -Stewart Coffin- made by Tom LenschNine Squared by Tom LenschThe Decoy -Stewart Coffin- made by Eric FullerRetroFit -Goh Pit Khiam- made by Eric FullerTom's Square Dance -Tom Jolly- made by Eric Fuller

This was Akio Kamei's Karakuri Christmas Present in 2011I'm selling these puzzles to fund future puzzle-making equipment, and of course to buy morepuzzles :)buyer is responsible for money transfer fees (ie 3.5% for paypal), packing and shipping expenses...

from www.karakuri.gr.jp:This box is my first mechanical piece. However the movements areeasier. To avoid the problem of humidity affecting the moving parts,some of the inside parts have been painted with lacquer.buyer is responsible for money transfer fees (ie 3.5% for paypal), packing and shipping expenses...

Ternary Burr by Eric Fuller. His original posting notes:- This puzzle is a groundbreaking and highly anticipated design. Only 30 copies have ever been made in the past, and Brian at Mr. Puzzle sold them out very quicky. The Ternary burr consists of 22 pieces, with over 90 notches and and grooves. The unique solution requires 75 moves to get the first piece out, and over 90 moves to completely disassemble the puzzle. A very difficult work of art!Here is what the designer, Pit, has to say about it...

This is a 20 piece altekruse type puzzle of unknown designer. J. McFarland modified it with extra internal notches to allow a 6 piece burr to fit inside. The puzzle uses 1" sticks and the 6 piece burr is a level 5 Bill's Baffling Burr designed by Bill Cutler. Both puzzles were made in 1988, only 2 sets made. 8 pieces need rounded edges in the notch for the puzzle to assemble.

Classic puzzle box. No packaging or instructions included.

Open the drawer to discover its contents.No packaging or instructions included.

Magno Maze is a rolling block maze, which involves rolling two blocks around each other. One block is 2x2x1, the other 2x1x1. The blocks have protrusions and holes in the shape of the digits '1' to '4'. The object is to start at '1-in-1', roll to '2-in-2', etcetera. The protrusions act as walls: it is not allowed to roll over any of the protruding digits.Oskar comments: "I made the original prototype using velcro to keep the blocks together. When visiting George Miller, he showed me a set of tin...

"Despite the devilish difficulty of this puzzle, let me assure you that Derek is a really nice guy. Keep that in mind as you go crazy trying to solve his latest creation. Derek's half dozen is fiendishly difficult at a level 26.9.5 solution. It's so hard to solve I took pity and made the pieces from three woods so you'd have a big clue as to what goes where. I'm also shipping it assembled. You're welcome.Construction is dead on with VERY nice tolerances. Everything's square and beveled, with thr...

Stewart Coffin's Improved Cluster Buster by Scott Peterson - inscribed #3-6/11-STP.

Secret opening If the buyer chooses to be invoiced through Paypal, then Paypal fees of 3.98% will be added to the price. Buyer assumes all shipping fees.