Beta Hat T-Shirt

The Beta Hat T-Shirt is a body item unlockable in Club Penguin that is found in the Series 6-9 Treasure Books. Penguins need five Series 6-9 plush toys to access the "Super Exclusives" area of the Treasure Book, which is where this T-Shirt is.

Trivia

 * It is unknown why the name is Beta Hat T-Shirt, rather than Party Hat T-Shirt, since Party Hat is the official name, with beta hat being unofficial.
 * It is thought that this item was made to persuade people to buy the toys. This is because the Beta Hat is the rarest item.
 * Some penguins consider this rare, not for the date released, but because of it's exclusivity

SWF

 * Beta Hat T-Shirt