It's not mine i found it here link
1. Make him take a shower.
2. Make him use shampoo in aforementioned shower.
3. Make him use clarifying shampoo.
4. Apparate volgende to him, hand him a tube of super-strong facial cleanser, then quickly Disapparate before he realizes what happened.
5. Enchant this cleanser to follow him around until he uses it.
6. ...enchant the cleanser to follow him around anyway.
7. Tell him u stal his teddy bear.
8. Tell him u won't give it back until he agrees to wash his hair.
9. When he washes his hair, tell him u were just kidding and zei teddy beer has already...