No the cats do not have to be skinni! You can have fat cats, cuddly cats, stripy cats, spotty cats, whatever as long as there is a cat!
This is my make and the saying just made me laugh. This Stampotique cat (available in the UK from The Stamp Attic) looks so guilty here that I thought it enhanced the joke. It was just calling out for a hand pointing to the guilty party!
Enjoy the make this week. Remember Skinnis are 3 x 5 inches.
Hop over to SCD and see what the rest of the design team have made.