The Piggy Bank Pinata is a pinata that appers in the Me and The Eds episode "Eddy of The Mask".
As its name would apply, it is a pinata in the shape of a piggy bank (with a flashing dollar sign on the side). After Eddy enters the casino, he sees Nazz in a bikini and 2 other girls all dressed as Playboy Bunnies filling the pinata.
Most of its contents are dollar bills of 20's, 50's, and 100's. When it was given to Eddy for his birthday, it was filled with the fake money seen in Laugh Ed Laugh. Only difference being it has Casimus's face on it instead of Ed's.