This one is old classic prank. What you need is:
- Water
- Flour or bread crumbs
The main goal is to splash water on your "mark" and then cover them with bread crumbs so he/she looks like a croquette. You can do this in many way. One way, is to distract your "mark" and then cover him/her with water and then with flour or bread crumbs. It's a simple and rough way, but you can be creative and make a trap so they get covered by doing something.
Tip: Put a plastic bag or balloon filled with water on door and do the same thing with flour just put it on cabinet door and ones they get wet tell them they can take hair dryer from cabinet.
You can do this even without water:
