Prepare cake as directed on box, let cool and refrigerate over night. Mix lemonade packs into 1.5 cans of frosting. Use more to increase the sour flavour. Mix the tropical punch into the cherry frosting can. ( this will be the filling.) Remove cake from fridge and poke holes into cake using the point of a frosting bag and fill with the tropical punch frosting. (this should be sour but tasty). Spread the lemonade frosting on top of cake and decorate cake to look like the candy box of sour patch kids. cut out two strips of cardboard and frost to form the look of an open candy box.

You can make your own frosting if you choose too but I've found the pre-made works the best for this. Do not use wiped frosting.