Peasley's Rose

Peasley's Rose is an item found in Mario & Luigi: Superstar Saga. Mario and Luigi climb Hoohoo Mountain and battle Dragohoho, who is really a transformed Prince Peasley under Cackletta and Fawful's spell. The prince rewards them with the Peasley's Rose. The white rose is autographed, and used as a pass to Beanbean Castle. It proves that Mario and Luigi are friends of the prince and the guards allow them to enter.

Trivia

 * The Rose's only purpose is to create humor in the game, as the player would need to get Hammers to access Beanbean Castle Town, which can only be done by defeating Dragohoho anyway.