Vampire cats
Ingredients: black crepe paper, red crepe paper, sticky tape and a cat.
Cut red to be slightly larger than the black.
Stick two layers together.
Scrunch at together and place one piece of tape to keep it folded at one point.
Result: Vampire cats!
Next, need bait. (look at those fangs!)
Someone convinced me that posting photos implicating me of cat crimes may be a bad thing (especially with 4chan around).