I made this pinata last year for my secret sister at work. Here is a free pattern for the bunny shape.
I cut two chocolate bunny shapes out of poster board, and the an inch and a half strip to go around the edge. You can make it wider if you want to fill it with more candy. I took the edging and taped it to one side of the bunny, then filled the innards with candies and confetti.
I then took the lid and taped it on top.
I folded over strips of tissue paper and created fringe.
I glued it all around my bunny.
Added a ribbon and a tag and then it hopped on it's way.