Moving Tail Kitty Car Decal. Get some animal action on your car with the Moving Tail Kitty Car Decal. Designed for cars with a rear window wiper, this whimsical kitty comes in two flavors: Happy and Grumpy. Application is easy: clean off the surface, stick down the vinyl decal, and smooth any bubbles out with the side of a credit card. Then turn on your wiper and watch the kitty's tail swish swish swish! (thanks Cora). Posted by Gerard on 8/26/2013. Labels: funny