I say "witty joke" ... I mean "joke so awful it borders on being brilliant"...
So far:

What do ghouls wear on their feet in the rain?!? GHOULOSHES!!!
Homeowner: My house is located in an earthquake zone. Agent: Sorry, but I can't help you. I only sell no-fault insurance!
Why did Willie Nelson get hit by a car? He was playing on the road again.
What did the sailor say when he saw a boat loaded with ewes? Sheep ahoy!
Where did King Tut go to ease his back pain? The Cairo-practor!
Who delivers puppies when the Vet isn't available? The mid woof.
What's the difference between boogers and broccoli? Kids won't eat broccoli.
Why do bees have sticky hair? Because they use honeycombs!!
How do you get a frog off the back window of your car? Use the rear defrogger.
What do you call bedtime stories for boats? Ferry tales.
Did you hear that NASA has launched several Holsteins into low earth orbit? It was the herd shot around the world.
Where does satisfaction come from? A satisfactory.
What do you need to split an atom? A fission License.
What would you get if you put a light bulb in a suit of armor? A knightlight.
What did the worm say to the caterpillar? What did you do to get that fur coat?
What goes Ho, Ho, Swoosh, Ho, Ho, Swoosh? Santa caught in a revolving door!
What do you call a bunch of dancing pebbles? The Rockettes.
Did you hear about the two men who walked into a bar? The third one ducked.
What do termites do to relax? Take a coffee table break!!
(I think I might try and sell some of these to MI6 for interrogations)
