Thumbnail
Thumbnail is the thumbnail to the Second Challenge remix Felease the your House. It appears in said project as Guitaf's friend who it calls on for help.
History
When Guitaf found itself unable to get into its house, it called up Thumbnail. However, Thumbnail arrived on the other side of the house, and the two couldn't hear each other. They ended up in a perpetual loop of asking the other to come over to their side, so they could better hear each other's voices.[1]