Today I realized that there are plenty of funny non-PC jokes out there, which could very easily be turned into funny jokes which target a group no one will be offended by: Spammers.
Lawyer jokes are particularly appropriate:
Q: What do you call 1000 spammers at the bottom of the ocean?
A: A good start!
Q: Mom, can you get pregnant from anal sex?
A: Of course, where do you think spammers come from?