Two disentanglement puzzles, the big one is a Bits and Pieces 07-7241 Dutch String Puzzle (also called "Invincible Rings" in one of their catalogs, 07-K7241) with box and solution sheet, the little one I don't know where I got it from. Not very difficult.

Dreiecksbeziehungen tray puzzle - triangle packing. This gives you 9 little triangles, which you can pack into a 3-triangle square hole, 4 triangle hole, and so on up to 9 triangles in a larger square hole. Interesting puzzle.

The Flower; edge matching, make-a-continuous-chain-loop of sum-7's. Nice wooden pieces in a bag, designed by Jeremiah Farrell, laser cut by Walter Hoppe. An exchange puzzle from IPP 29.

Greedy Cup (wood). Fill beyond a certain point, and it suddenly drains itself out the bottom. An IPP29 exchange puzzle from Naoaki Takashima, designed and made by Nagaoka Gear Mfg Co.

IPP-edron. There are 5 pyramids in the sphere, which can flop around such that 4 internal faces finally spell "I-P-P-29" with the correct alignment of the letters. Designed by Pantazis Houlis, made by Mindstrat Puzzles.

Pack In 2 has a set of 7 oddly cut pieces that can pack into two different plastic containers. It's an IPP29 exchange puzzle designed by Mr. Fu-Kuo Ju.

Trickerboard - arrange all the pieces so that edges do NOT match. Designed by Rob Hegge. I'm guessing it was cut by Walter Hoppe, but it doesn't say on the puzzle.

DiskFits asks you to arrange the pieces in the tray so that they create 1 or more symmetrical configurations. This was an exchange puzzle produced for the 2009 IPP.

HexyHex is a wire frame that flexes somewhat like a flexigon, making a few interesting shapes but not really a puzzle in any sense at all. It has an original price tag for L1.95. I'm guessing it's from the 1960's or thereabouts.

Try Again - designed and made by Greg Dye for the IPP29 Exchange. This involves taking a tray of pieces, each made from two triangles glued together and died with different colors, and making a number of patterns (8 puzzles) with the pieces. Not easy, and an interesting exercise in logic.

Great Collision - 2 metal outer pieces with a plastic red ball in the middle. Take it apart, then put it back together again. Not terribly difficult. IPP29 exchange puzzle, designed by Doug Engel. Very nicely made.

This set of animal pentominoes came from the Belgium school-group at KSO Glorieux Ronse that does the contests all the time. It's cut by a jigsaw, but not a jigsaw-cut puzzle! It's rather large; 10x16 and about 3/4" thick, and nearly 2 lbs, so very expensive to ship overseas! The wood is 5-ply.

This is Bill Cutler's 139 Burr. It's an unusual 6 piece Burr in excellent condition.

This is Peter Marineau's Piston Puzzle design. The puzzle is crafted in Cocobola by Jerry McFarland, and is currently unavailable.

This is the Star packing puzzle, designed by S. Grabarchuk and crafted by William Strijbos. There are 16 pieces plus the tray. Paper solution diagram included.

New York Gothic wooden disentanglement puzzle by Woodenworks in Washington, D.C.

No Dexterity, designed by Oskar van Deventer and crafted by Tom Lensch. The objective is to move the ball through the maze by turning the maze side-to-side: without lifting the box off the table. Quite challenging.

Aim is to open the eggBased on Issac Newton's 3 Laws of motion, think about itIPP bound,get it before they doWood is Osage Orange, Best of the BestComes with standBuyer to pay 4% Paypal and Postage

Aim is to open the Acorn, a variation of the Egg Based on Issac Newton's 3 Laws of motion, think about it Wood is Camphor, Best of the Best Comes with stand Buyer to pay 4% Paypal and Postage

The original crack EggHow do you open an egg?Wood is smooth Silky Oak, a real BeautComes with standBuyer to pay 4% Paypal and Postage