Don't know if you have any, but 3-Muskateer bars are phenominal with Raspberry jam on top.
Last year, we had way to much candy. I took the left-over candy bars and sealed them into three airtight freezer bags, to insulate them from any moisture, and the freezer taste. I put them in the deep freeeze. I used them this year after testing the quality. They were as good as when I first bought them, and save me the cost of purchasing new candy.
Be creative with the candy you have if you want to use it up. A square fo graham cracker with a marshmallow and Hershe's Kiss on top could me microwaved and served as an dessert. Bars can be cut up and used as Crewsk said, mixing them into softened ice-cream, or in pudings or cream pies. Things like M&M's or Peanut M&M's can go into brownies, pancakes, fudge, cakes, or icings/frostings. Hard candies such as lemon drops, butterscotch, mints, etc., can be crushed and sprinkled over puddings, ice-cream, on top of cakes, etc.
Carmels can be melted and have apples dipped into the hot sauce, or can be mixed in with pumpkin pie filling. You can melt them, and add a bit of water or milk to thin into a dipping sauce, or a sauce for ice cream.
Taffe, well, I'm just not sure how to be creative with them, except maybe to add them to a sauce and melt them in.
Hope that helps.
Seeeeeeya; Goodweed of the North