Unwrap caramel squares and cut them in four equal parts with your kitchen scissors. Set aside. Next, snip marshmallows partway down the center, lengthwise. To create a diaper, the marshmallow needs to stay in one piece, so make sure you don't cut all the way through.

Snip two triangle-shaped wedges off the marshmallow's bottom to create leg openings. Insert one piece of caramel into the cut center of each sliced marshmallow.

With clean hands, pinch the sides of the marshmallow back together around the caramel piece. Gently pinch and pull the sides of the marshmallow to form your diaper.

Arrange the diapers on the toaster oven tray or a square of heavy-duty foil about 2 inches apart. Toast on a "light toast" setting for about 30 seconds or until marshmallows begin to bubble. The diapers will melt and lose shape quickly, so be careful not to overcook. Remove diapers from oven and cool slightly. Dirty diapers taste best when they're fresh and warm. Makes: 24 party poopers.