The hilarity of knock-knock jokes meets the fun of door decorations. Kids will love tearing out and hanging up animal-themed jokes on their doors, inviting the classic opener: "Who's there?"Easy to tear out and hang up, these 16 double-sided door hangers feature funny animal-themed knock-knock jokes paired with silly cartoons -- and all are guaranteed to bring on the giggles. A perfect gift for any kid who just loves joking around!