Build a structure out of spaghetti and marshmallow (or gummy candy) to hold a ping pong ball, or a ball made from aluminum foil. The structure should support the object for at least 30 seconds.
Build a carrier for an egg that can carry it across the room.
Build a structure that will protect a raw egg when it is dropped. Try dropping it from increasing heights to see how from what height it can be dropped without breaking. Send in a video!