Instead of one huge Piñata, how about individual ones? Use a large balloon, the top of a water bottle or any other you have drunk and cut and long skinny or small sweets ( when buying them make sure the will fit through the spout of the water bottle). Once you have finished stuffing the sweets into the balloon blow them up and hey presto!! Don't forget you can personalise each balloon by drawing/writing in them!!
Looking for something different to make at a baby shower?? How about these marshmallow rattles, the marshmallow had just been dipped in melted choccy and the rolled in your choice of topping!!
