OK,
Well, the Haiku contest was great fun. But a limerick? Now THAT's a challenge! Especially if it is naughty and fishy, both at the same time.
I believe Casper has an extra set of decals which he was prepared to mail out, which is now available...
The general format (rhyme scheme) of a limerick is:
A
A
B
B
A
There is also a certain meter to observe, but I don't feel like analyzing that right now. So I will just say, be creative and have fun with it. No rules - winner again will be by popular decree, with Casper making the official determination.