Its a full can (un-opened - you need the weight to hold all the goodies!) insulation foam - hot glue the candy and tissue paper and curling ribbon to them. Then stick 'em in! I then go back and fill in!
There really are 100 percent profit fundraisers and you see them all the time, often without consciously realizing what they are. A true profit fundraiser is one that is pure donations, plain and simple.