Ship Your Enemies Glitter
(Warning, the above site uses foul language.)

No really, it’s a real thing. And it’s evil.

They advertise:
“WE SEND GLITTER TO THE PEOPLE YOU HATE.
Glitter as a Service: want to tick* off someone you dislike for only $9.99? Let us send them some stupid* glitter that is guaranteed to go everywhere.”
*censored

Glitter is something children like because children don’t care about messes; they don’t have to clean them up. The rest of us? The rest of us hate glitter, because, as mentioned above, it gets everywhere. EVERYWHERE. This site will send glitter to someone upon whom you wish to inflict a terrible, terrible fate upon.

I avoid greeting cards, Christmas ornaments, and pretty much any other item with glitter on it. Oh yeah, sparkles=yay and all that, but I don’t like glitter in the carpet, on my clothes, in my vehicle, nor in numerous other places the glitter will inevitably stick.

So if you hate someone, you now have the option to send them glitter. Use this power wisely.