Items for Sale (Updated 6/28/17)

6/28/17 UPDATE: From now on I’m going to use Etsy to sell my puzzles online. I will leave the rest of this page unchanged so that links to it still make sense. Here’s the link to my Etsy store:

I came across Henry Dudeney‘s “Haberdasher Puzzle” a while ago and decided to make one from colored acrylic. I think it turned out pretty well if I do say so myself:
(I included a Rubik’s Cube to give a sense of scale.)

The puzzle consists of four pieces that can be rearranged to form a triangle. Here’s a picture of the puzzle “disassembled”:

Triangle Pieces

Then I found a design for a plus sign, or “Greek Cross“, so I made that one too:


And here it is in pieces:

Cross Pieces

But wait, there’s more! I then found designs for a pentagon (also Dudeney’s):

PentagonPentagon Pieces

I couldn’t stop there so here’s one for an hexagon based on the work of Harry Lindgren as it appeared in the November, 1961 issue of Scientific American:

HexagonHexagon Pieces

If these appeal to you, then I’m pleased to tell you that they are for sale at some local puzzle stores. You can buy them at Eureka PuzzlesLittleBits Toys, and The Games People Play.

Recently, my friends convinced me I should make more of an effort at selling these – they say these colorful “Puzzle Coasters” will appeal to more than just math puzzle geeks like me. So if those stores are too far away, you can also buy the puzzles directly from me, either by emailing me (see below) or visiting my new Etsy store. Right now I have four left of the square/pentagon type (yellow) and four of the square/hexagon type (blue).

I’m not a big company – basically I make these things by hand – so when I run out I think what I’ll do is wait until I have ten or so requests and then do a production run. I’m not sure whether to sell them on Etsy or put them on eBay. I guess I’ll figure that out as I go.

And for those of you who came to this page looking for solutions, fear not:

Let me know if you have any questions – about buying them or anything else. Just email me at kay en oh see kay at-sign pea why are eye gee aye en dot see oh em.


  1. Hi,

    Re your dissections, I wondered if you’d come across Hinged Dissections: Swinging and Twisting by Greg N Frederickson (you can find it on Amazon).

    Also have you filled your order book for your puzzle #808 ?

    • Yes, I’ve seen Hinged Dissections for the Dudeney triangle and other dissections. Grand Illusions sells a hinged Dudeney triangle that’s made from anodized aluminum and it looks fantastic (

      Thanks for your interest in Model #808. I’m still assembling them and have not started selling them so you’re in luck! I’ll put up an availability and pricing post in the next week or so.

  2. My granddaughter wants a puzzle box. I have selected the Diamond box. I can find very little info on the workings of this box. Can you help me.

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