The Polyalphabetic Substitution Cipher Slide Rule. This is a slide rule to assist with the ciphering and deciphering of polyalphabetically enciphered messages. With it, you can learn a bit about how slide rules work and a bit about crypto at the same time! It also has some added features that let you begin exploring strong crypto.

I created this design while learning how to use my laser, it's a good simple project that creates 35, 1.2in hex pieces that can be pushed together to make abstract sculptures. They make a great desk toy or gift because you can engrave a custom logo or name on each piece to make them truly unique. I'll be giving several sets out this Christmas.

This pattern creates about 35 pieces, and the only material you'll need is a 8x8in piece of plexiglas, which I've been able to regularly find at my local home improvement store for $1.50.

35 pieces is enough to build a 6 inch sphere, or a large abstract object. When I was giving these out as promotional items, I gave them out 7 at a time which is enough to be interesting, but only costs $0.30 in material.

This toy is not intended for young children, the edges are mildly sharp and could possibly be a choked on.

I've also included the flash file which I drew this design in. I have a lot of experience in flash so I'm sticking to what I know for now.

Make a little art with you business cards

See our video at adafruit.com/blog/2009/05/25/adafruit-business-cards-laser-cut-spirograph-cards/

This is a two part cityscape ring. I usually cut them in acrylic, but they also look badass in wood.

The file here is a size 7 ring, but its easy to swap out the inside circles. Once you get up to about 8.5 you may run into trouble with the walls being too thin, widening the design should fix that.

This is a model of the classic pulp SciFi rocket, which takes the hero, the sidekick and the romantic interest, to the stars!

For something that fits in a 12"x12" sheet, this thing will tower nearly 15" tall, overawing any primitive aliens you are likely to meet. Well, the shorter ones anyway.

Heavily inspired by Herge's Tintin comics, which are a must read.

For Mothers day I made my mom a set of earings that double as a working planetary gear.

...sorry for the pun in the name.