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.
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.
"I have a good cellphone with all these neat features, but I couldn't find a cheap bike mount for it, so I decided to build one of my own! I've just used cardboard, a lot of black extra strong gaffer tape, about ½ meter (~1' 8") of velcro and a piece of sponge that sits on the back, between the handlebar and the bike mount as a shock absorber."