This is our in-class design:

Something that prevented our in-class design from being useless was that the cup could still hold water. So, the first thing I changed was the material. My cup is now made of dissolving paper, so it will dissolve once you pour any liquid. Now, the spoon and the fork are engraved Under the cup’s handle, which prevents its use. Also, the knife is permanently attached to the top of the cup, so you cannot remove or use it.