Art Attack Goldtone I Love My Dog Lover Heart Outline Chihuahua Mexico Pet Puppy Rescue Pendant Necklace 17" Cable Chain For the dog lover in all of us! Pendant is .75" x .75" The Taco Bell Chihuahua was actually a female. The Taco Bell commercials that aired from 1994 - 2009 feature a female Chihuahua named Gidget. Gidget passed away in 2009. Chihuahuas were first known as the Arizona dog. They were called the Arizona dog or the Texas dog, because they were first found in those states bordering Mexico.