Many cars and bicycles exhibited at the Maker Faire made you pause and rethink your definition of a car or a bicycle. :-)
There was a morbid, but fascinating roach mobile; a van covered with cameras (http://www.cameravan.com); an assortment of electric cars. Some of them were made by companies that plan to make money off of them, others by hobbyists as tongue-in-cheek projects. Some were converted from cars that run on gas. Some allowed you to look under the hood, others (most) had no hood at all.
Then there was a panoply of wonderful bicycles in shapes of butterflies, grasshoppers, and who-knows-what. I felt like I stepped off into a fairy tale world.