Check out "That Car" I and II - Doll Head Extravaganza on wheels by Greg Phelps

 That Car #1 Mazda Art Car by Greg Phelps
That Car #1 By Greg Phelps

Greg Phelps of Columbus, Ohio, is the creator of "That Car" I and II both daily drivers with the same vanity plate THAT CAR because he says everyone shouts, "Check out THAT CAR" when they see it.
 That Car #2 Art Car by Greg Phelps
That Car #2 By Greg Phelps
That Car I is a 1990 Mazda Miata, covered in toys, plastic, glass, bone and a lot of doll heads all glued on with silicone. He drove it between 1999 and 2006 and is now a part of the permanent collection of the Kentucky Museum of Art & Craft as a functional piece of art.
That Car II, a 1999 Chevrolet Cavaliergot got started in the spring of 2006 and is also covered with plenty of reconstructed dolls, toys, skulls, shells and reflectors that he is always double-checking to make sure nothing goes flying off the car onto the highway. Nice work.