I also was thinking of rice krispie treats. You can jazz it up by cutting them up into squares or forming them on lollipop sticks, dipping in melted chocolate and other toppings like chopped nuts, sprinkles, crushed hard candy, etc.
Here are a few recipes I have made. The cranberry lemon was the favorite when I made a variety of batches. Each uses one standard krispie recipe.
Cranberry Lemon
1½ cups dried cranberries (separate the cranberries so they are not clumped together)
1 ½ teaspoons lemon zest (about 2 large lemons, use a microplane)
Mix cranberries and lemon zest into melted marshmallows; add Krispies and continue with recipe
Peanut Butter Cup
½ cup plus 2 Tbl creamy peanut butter
¾ cup melted chocolate (I just used choc chips)
Melt choc in microwave (does not need to be entirely melted, just soft); make sure you don't get the choc wet or it will seize
Mix melted choc and PB to melted marshmallow, add Krispies and continue with recipe
Coconut Miso Caramel
¼ cup toasted coconut
1 1/2 c caramel (about 1/2 of 11 oz bag of caramels)
2-3 tsp light miso
Melt caramel in microwave. Watch that it doesn't bubble over. Mix miso into melted caramel. Mix into melted marshmallows along with the toasted coconut. Stir, then add Krispies and continue with recipe.
Sweet Paprika Nutella
½ c nutella
2 teaspoons paprika
Mix into melted marshmallows, then add Krispies and continue with recipe.