Feather Pen

"'A normal feather pen used to compose music. Its use is said to impart mastery of the skill of Musical Notation.'"

Feather Pen is a basic tool used with the Compose Specialty to create songs. 

Shops

 * Rosso's tool shop in Hilton.
 * Seaside Music Shop in Hilton.
 * Academy Co-op in Linga.
 * Tool shop Blue Flask in North City.
 * Salesman in the Snow, located inside Giveaway University in Giveaway.
 * Gift shop Gift Box in Fun City.

Treasure Chests

 * Inside Cross Cave.

Pickpocket
Feather Pen is a common pickpocket result. For a full list, see Pickpocketing.

Random Drops

 * Treasure Chest
 * Fill-Up
 * Fountain Card
 * Lien
 * Jack-In-The-Box