Slappy's Doomsday Survivor Shirt is a shirt item released during ToonFest 2014 for all toons who had created an account before June 2, 2014.
History
Location
Available from
Available until
Codes
September 20, 2014
Still Available
Trivia
Flippy's Doomsday Survivor Shirt was released alongside Slappy's Doomsday Survivor Shirt for the same purposes.
Slappy's Doomsday Survivor Shirt and Flippy's Doomsday Survivor Shirt are the two rarest items in the game, since they were only released to alpha testers.