- A clear glass or plastic container with a lid
- A small piece of styrofoam
- A rubber band
- A piece of tape
Instructions:
1. Place the styrofoam inside the container.
2. Stretch the rubber band around the outside of the container, securing the styrofoam in place.
3. Close the lid of the container.
4. Wrap the piece of tape around the outside of the container, covering the lid.
When you shake the container, it will sound like you're about to smash a glass cup! This can make for a fun and practical prank to try when your friends least expect it.