Lee's Bent 1
Lee Ravenscroft runs Working Bikes, a local bike charity. Having access to hundreds of bikes and (presumably) plenty of free time, he builds some pretty wacky creations. The most impressive thing about his work is that he never welds, he does everything with bolts and hose clamps. This bike is an example of one of his homemade recumbents.
As you can see here, he takes a regular step-through frame and puts a smaller front wheel on it. Then he attaches a boom- those clamps come from a fencing and railing supply company- with a crankset at the end. After that all he needs is an extended handlebar stem and a backrest, which he fashions out of crutches, 2X4s, even old street signs. He says that his greatest challenge is comfort- to overcome this he once built a bike with a folding camping chair bolted to a huge 2X4 frame surrounding the bike. I'll definitely have to get pictures of that one.