Ruby_magnets_on_shoes is a project mainly written in ..., it's free.
Ruby Magnets on Shoes
Do you know Ruby Magnets?
If you don't, go to RPCFN: Cycle Tracks (#12) and look at the challenge PDF.
Head First guys show you that. ;-)
This idea inspired me, so I tried to implement with Shoes.
Watch a tiny online demo recorded with CamStudio and play with your own Shoes.
This is my tiny project for celebrating WhyDay. :)
Let's enjoy Ruby programming with Shoes!
Cheers,
ashbb