They were meant for frozen desserts, that's how pastry chefs used them for. Then someone made them into cake and started a company, and Tori Spelling got it for her kids parties, and it was all over, lol.
Funny thing is that they were called Sprinkles Cake Shooters. I'm sure the owner of Sprinkles Cupcakes, who is not too nice about having other people with her name out there, made trouble, because now they've deleted the name.
I heard about another cupcakery that was called Sprinkles Sprinkles and she had that changed, too.