In my state, plain old playing cards have a sin tax on them. They have a little label on the bottom, just like cigarettes do. I think this is kind of funny because you can gamble on anything. I've seen Rook games that were serious, and if money had been involved, violence might have erupted. You could play Monopoly with real money, if you had it, as far as that goes.
I'm actually a little surprised condoms, other OTC contraceptives, lubricants, marital aids and the like don't have a sin tax on them. But now I'm just being snarky and facetious.