Use www.revengebymail.com to send prank mail to people. They're customizable and anonymous, so you can send them to ANYONE and no one will know it was you.
Dec 18, 18 02:03 PM
My sister has a PC, and frequently changes her desktop background. So, I change her desktop photo to one that she would never use, or one that she hasn't
Dec 18, 18 02:03 PM
I grabbed a pencil that my sister uses, and put clear nail polish on it. What this does is restrict the lead so that it can't write!
Dec 18, 18 02:02 PM
Put rainbow food dye on the toothbrush then you cover it with a bit of toothpaste wait until your target goes and brushes their teeth...