Pig: Neighbor Bob came by and gave us a gift.
Rat: I don't trust that guy. Are there any strings attached?
Rat: Alright, then. What is it?
Pig: A guitar. It's hard to play.
Many years ago in a “Flintstones” comic book, Barney “invented” a stringless guitar; you could turn it over and play it like bongos, or put rocks in it and play it like a maraca.