Screenshot/Amazon Snapchat has started selling an $80 dancing hot dog costume ahead of Halloween. The costume is a nod to one of the app's most popular AR filters. Snapchat parent Snap Inc. is officially in the costume business. On Wednesday the company started selling an $80 dancing hot dog costume on Amazon. The costume is based on Snapchat's new celebrity character: the app's dancing hot dog filter that quickly became an internet meme sensation over the summer.