Cluwnes have it too easy now.

[Crazyabe]

Make them into (Literal) Bullet magnets
Make the doors hate them
Make them explode into cash on death (1-2 hundred thousand)
Make them leave slime trails like snails
Give random crew members, including secs, "KILL ALL CLUWNES" Objectives when one is made.
Cause them to burst into flame in the chapel.
Give us a new form of artifact, Clowns artifacts, which can only be obtained by de-organing Cluwnes
Give the Killer of a Cluwne so long as they aren't a wizard, a single single use wizard spell per cluwne.