Altoid tin alterations are pretty popular among the hacking community, but this one takes it down in size. Using the Altoids Slim tins, Instructables user Joshua Zimmerman put together these bite-sized LED flashlights for under $5. With just a tiny bit of drilling and soldering, you could easily assemble a handful of these in an hour or two.
Also known at the Sociable, the side-by-side tandem bike has actually been around since the 19th century. Commonly used for courting couples or newlyweds, the bicycle is seeing a resurgence with hackers and DIY enthusiasts. One guide by Instructables user carlitos is a simple weld job consisting of nothing more than an extra seat, pedals, crank and some tubing. I can't think of a more perfect wedding gift.
Sun Chao, a crafstman from Kaiyuan, China, spent 4 months working on this project. The result is a fully-functional bicycle made from over 10,000 Popsicle sticks. Its inaugural ride lasted 20 minutes and easily supported his 200lb weight.
That's a lot of terrible jokes to read.