Oskar designed the 12 piece Big Knot and the 6 piece Little Knot. The Little Knot shown in the picture is made out of Bubinga and Ebony. Each piece is 1-1/2" x 3-1/2" x 1/2" thick and 5 of the six pieces are identical. The final puzzle is 3-1/2" cubic in dimension.

This puzzle box was created by Yoko Kakuda as a Xmas present for the Karakuri Club members in 2007. It is now sold out and no longer made. The mechanism is simple and humourous. This box is in excellent (as new) cosmetic condition and works smoothly. Comes with the original box.

This puzzle box was created by Tatsuo Miyamoto as a Xmas present for the Karakuri Club members in 2007. It is now sold out and no longer made. There are two compartments to unlock. This box is in excellent (as new) condition and works smoothly. Comes with the original box.

This puzzle box was created by Yoshiyuki Ninomiya as a Karakuri Club Xmas present in 2006. It is now sold out and not being made anymore. The box contains a spinning top (also part of the mechanism) crafted by Kazuyuki Tanaka. This box is in excellent condition (as new) and opens smoothly. Comes with original box.

This puzzle box is one of a limited edition of 25 crafted by Robert Yarger earlier this year. They are now sold out and no longer in production. The box contains domino tiles (which are an integral part of the mechanism) crafted by John Devost. It is in excellent condition (as new) and works smoothly. Comes with the original instruction booklet.More information from the craftsman can be found here:https://www.cubicdissection.com/html/purchase/discont/dominobox.html

This karakuri was created by Yukio Ogura as a Xmas present for the Karakuri Club members in 2007. It is part of the "card case karakuri" series which were originally designed to hold business cards. This one was inspired by similar traditional products from the Hakone area. This item is in excellent (as new) condition and works smoothly. Comes with the original box.

Stewart Coffin's Ring of Diamonds puzzle (STC #13-B) made of Padauk and Chechen. This puzzle has 6 dissimilar non-symmetrical pieces that assemble in only one way. This puzzle has a nice fit and finish. This was a prototype I made prior to the ones I listed and recently sold on the web site. It doesn't look quite as good as those did, but it's not too bad.If buyer chooses to pay by PayPal, the PayPal fees will be added to the selling price. Buyer pays all shipping fees.

The Melting Block wooden puzzle designed by Thomas H. O'Beirne and crafted by Jerry McFarland (2000). Fit the 9 pieces into the wooden box, so that the wood is flush at the top; creating a regular rectangular solid with no internal voids. Quite a remarkable dissection.

The Amazing Rope-Rings: Illustrative Designs of 50 Intellectual Rope-Ring Toys by Wang Zong Yi (c) 2003, Shenyang Press. Paperback, 140mm x 205mm, 230 pp. (incl. 8 pp. with color photos of puzzles). This book contains very detailed illustrations and solutions of 50 (both old and new) disentanglement puzzles. The text is in Chinese with some English (well, some sort of) but the drawings are very clear so that you make the designs yourself. In fact there is not that much text in the ...

The Technicube by PUZZLE GUILD, Inc. is an antique puzzle made in the mid 1930s. There are 19 pieces that form the cube. The wood has been color dyed. The original box is included.

Bottle in Rome is a trick opening bottle made by Akio Kamei in 1998.

The Rosebud is a coordinated motion puzzle made of 2 sets of 3 identical pieces. Assembly is very difficult. The assembly jig that is included makes assemble much easier.

Rhombox was the IPP Design Competition Trophy puzzle for 2003, 2004 and 2005. There are 12 pieces, several are similar, to make the Rhombox puzzle.

Star of David is a 6 piece interlocking puzzle that can be assembled into three distinct shapes.

An excellent Scorpius Puzzle

a standard head and tail puzzle from germany

Stewart Coffin wooden tray puzzle: "Few Tiles." Fit the four pieces into the tray. The tray opening is not square. Each of the pieces has two corners with 90° angles and each can be flipped over. A very difficult puzzle. Number 133 in Stewart's numbering system. Woods used are Baltic Birch and Mahogany.

4 move mame box by Oka- san. New and unopened. ***Please add 3.25% for Paypal Payment.

It is a nice six piece level 4 burr. I think the design is from Van der Poel, but I am not sure.

Extremely challenging 50 move box by Makishi. Made from poplar wood. There are two keys on the side sof the box. Puzzle can be taken apart to its basic components once solved by removing a screw (this is not recommended).***Please add 3.25% for Paypal Payment.On Jun. 07, 2008 17:46:21, the following description has been added:*1 "key" on each of the two sides, please see photos.