Did you see Bradley Litwin's MechaniCards this time last year? If not, check out the video above. MechaniCards are hand-made kinetic sculptures that you can send in the mail.
The entire collection is going on sale on www.Fab.com, this Friday, September 23rd for up to 30% off. I don't know much about Fab.com, but you will need to request a free membership to take advantage of this deal.