Homemade Amphibious Bicycle

This amphibious bike totally floats my boat. Eight large water bottles function as pontoons, and its adjustable vane wheels provide driving power. You can ride it on either land or water. Sure, it's probably a bit cumbersome to ride with those bottles. And sure, it's probably not super stable on the lake. But it's way better than any amphibious bike I've ever made.

Via Inhabitat.