Since "create a joke" threads don't usually work out, let's go on a more specific category of jokes that are not hard to make - Chuck Norris facts.
Just think of something cool, and base your facts on references - these are the only ones that work out.
Don't post anything that already exists please.
Mine:
There was a handsome, healthy guy who declared he was smarter than Chuck Norris. Today we know him as Stephen Hawking.