Some oldies but goodies:
How do you catch a unique rabbit? Unique up on it.
How do you catch a tame rabbit? Tame way, unique up on it.
How do crazy people go through the forest? They take the Psycho path
What do fish say when they hit a concrete wall? Dam!
What do Eskimos get from sitting on the ice too long? Polaroid's
What do you call a boomerang that doesn't work? A stick
What do you call cheese that isn't yours? Nacho cheese.
What do you call Santa's Helpers? Subordinate Clauses.
What do you get from a pampered cow? Spoiled milk.
What do you get when you cross a snowman with a vampire? Frostbite.
What lies at the bottom of the ocean and twitches? A nervous wreck.
Why did Pilgrims' pants always fall
down? Because they wore their belt buckle on their hat.