I saw on Out Of The Box Games site that they sell blank sheets of Apples to Apples cards. That way you can print your own cards for the game. I know the game comes with a couple blank cards to customize but this lets you take it further.
I gotta be honest. We can't quite get into Apples to Apples. I can just see how it would be fun in the right setting. Like when we used to play Balderdash (the original one) in college, it was much funnier than it is now. I think I'm getting old.
What us old people do like to play instead is Cranium Whoonu. It's slightly similar in concept to Apples to Apples. On each turn you have a set of cards and have to pick the one that the Whoozit (dealer) would like the most (or least in a backwards variant).