Designed by Wil Strijbos this is Hanayama's Menji branded anti-slide puzzle called Caramel Dice.There are numerous challenges involving 13, 14 and 15 pieces. This puzzle also comes with actual Menji Caramel Dice sweets (12 of 16 remain unopened, but please do not eat them... they are from 2008!Fantastic condition and an absolute gem for collectors.Shipping is $6 UK and $18 Elsewhere

This is another of my very rare Takeyuki Endo puzzles. This one is from 2003 and is a dual-challenge puzzle - packing the pieces in a rectangular, restricted space (2 voxels high) and making a 3 x voxel cube, in the space provided. Both are difficult challenges - so luckily the solutions are provided.Mint condition.Shipping is $6 UK and $15 Elsewhere.

Taken from the Nothing Yet Designs website (with thanks), where this puzzle is long sold out..."The first thing is the planes..." is a 2D packing puzzle designed by Oleg Smol'yakov (GELO) and produced by NothingYetDesigns.Goal: Fit all 7 of the planes into the frame. When solved the pieces will lie flat  and no force is needed. If you are using force then it is not the solution.Made of laser cut acrylic and metal hardwareApprox size: 5"x5.25"Shipping is $4 UK and $12 Elsewhere

2 ball puzzle(Cherry Cocktail Puzzle)Objective: Put six pieces (three of each type) and two balls connected by strings into a cubic case. None of the pieces may come out of the case.Design by Irina Novichkova for the 2008 IPP Exchange Manufactured and sold by Cosmo BussanGreat design, I've never seen one for sale so listed low to allow a bargain for someone.Shipping is $6 UK and $15 Elsewhere