What's pink and covered in cobwebs?
madeleine mccann's bike.
Ok something less offensive, old but cracks me up still.
Man walks into a bar with a slab of tarmac under his arm. "Pint please barman" he says, "and one for the road"
another...
A panda walks into a bar, sits down and orders a sandwich. He eats the sandwich, pulls out a gun and shoots the bartender in the foot.
As the panda stands up to go, the manager shouts, "Hey! You just shot my bartender and you didn't pay for your sandwich! Who do you think you are?!?"
The panda yells back at the manager, "Hey man, I'm a PANDA! Look it up!" The manager rushes to his dictionary...
Sure enough it reads "Panda. Chinese mammal. Eats shoots and leaves."