Fossils

 were a limited-time currency released on May 30, 2017, for Act 1 of the Time Traveling Toaster 2017 Event. They were used as the event's Act 1 personal prize track currency. They were replaced by Papyrus after Act 1 ended.

Personal Prizes
The following table displays the prizes won upon collecting.

After the last prize was achieved, the player had the chance to win bonus donuts for every given amount of collected.

US$