Why did the Creature from the Black Lagoon go to the post office?

Because it wanted to send a shell-abrate greeting card to its friend.

Why did the witch's cat join a band?

Because it wanted to be a purr-cussionist

Why did the trick-or-treater's wagon get a flat tire?

Because it was loaded with too much "sweet" cargo!

Why did the mummy get grounded after trick-or-treating?

He kept unwrapping all the candy before he got home!