You need to bring a dessert for a function. You'd don't feel like making anything new because you've got some perfectly fantastic desserts leftover from a recent party. You don't want to take these half-eaten desserts to the function as is, so what do you do?
Get out some of your nicest looking paper or metal muffin liners. Cut serving size pieces from each dessert and put them in the muffin cups. The result is a tray of different desserts already in serving size and ready for the taking.