Perhaps you've seen one or two in your hometown, or not at all. Recumbent bikes tend to have a (lets say) "mature" following as compared to it's traditional bike counterpart. Perhaps that's because 'bents are more expensive due to their comparatively low production volume. For this reason, you'll find a lot of people making home built 'bent frames and fairings.
For this project, I'm making a short wheelbase (SWB) 'bent on a very small budget and recycling components from other bikes in addition to a frame. I call it
I should mention, WoodenBikes.com is an awesome site worth checking out ;) If it wasn't for encouraging words from the site (and meeting/talking with the man behind the site at Maker Faire) - I would have been weary about mounting a crank in wood :p
One day, I want to build an awesome 4x4 tandem battering ram :D