Fancy sending a Glitter bomb that can come in 6 different colours? Orange, Yellow, Green, Pink, Blue and Rainbow! You can send the Glitter bomb to anyone anonymously so you don't get in trouble. Some reasons to send a Glitter bomb is to congratulate, surprise someone, hand in your notice and the list just goes on. When you choose to send a Glitter bomb you get to write your very own letter saying whatever you want.