Glitter is like the herpes of the arts and crafts world. Have you ever spilled glitter before? Good luck, because you’re going to be finding that shiz for days. That’s why glitter also makes the perfect tool for petty revenge. Have someone you really despise? Well now you can ship your enemies glitter for $9.99. You can even leave a little note or keep it completely anonymous just to make them wonder what super villain they pissed off.