Taco Bell is almost single-handedly filling the novelty taco void, and its latest offering, the Doritos Locos Taco, does not disappoint on the novelty front. The Doritos Locos Taco is basically a Taco Surpreme inside a shell made from Doritos.
The idea, which may or may not have been spawned by a Facebook group with over 3,000 members called the "Taco Shells Made From Doritos Movement," started testing in Ohio last spring and has so far made its way to select areas of California. Here's a commercial that explains exactly where (Bakersfield and Fresno):
Video: The Mythical Taco Bell Dorito Taco, Now in Fresno