Don't know if made already, but whatever.
Post yer good, bad, amazing, terrible, corny, and punny jokes here.
Here's some!
What do you need to catch a microbial fish?
A Leeuwenhoek!
Did you hear about the guy that robbed the bank with a plunger?
He was shit outta luck!
That's all I got for now, post away fourumites!