Glitter. It looks good but is a pain the arse. It's a pain to apply to anything and get given anything covered in the stuff and it ends up all over your hands, your face, and your home; it's all but impossible to clean up. So that's why a glitter bomb, courtesy of ShipYourEnemiesGlitter.com, is the perfect prank.
The site is pretty self-explanatory. You send them $10 in Australian dollars, which works out to just over £5, give them an address, and sit back and wait. In a few weeks time your enemy will find a non-descript but non-threatening envelope in the mail which they won't realise is stuffed to the brim with glitter until it's too late. Once they pull out the letter inside the glitter bomb will be released, and you'll be left feeling a smug sense of satisfaction for anonymously striking back at your foes. And really, isn't this the real reason the internet was invented? [ShipYourEnemiesGlitter.com via swissmiss]