I think you should use jelly beans to go after the Easter bunny. Maybe try some candy canes to go after Santa when he comes around again. Candy corn or those pumpkin shaped things around Halloween. You could do a different load for every holiday. Those little tiny hearts for Valentines day. Seems like a lot of options to me. Sounds like the start of a business to me...
Wouldn't all the "shot" stay in the wad/cup while it's in the barrel?