Finn's Flute made its only appearance in "Prisoners of Love." Finn played it for a few seconds and then threw at the Ice King to attack him, but it got disassembled when being thrown, because it is in a bad state. Finn broke it when he tried to pick the lock to a sad ogre's heart.
It looks like a crooked and edgy flute which is woody yellow in color. It has lots of scotch tape on it. There is a branch in one of the holes of the flute.
- Finn's flute made a cameo appearance in the episode "Finn the Human" and "The Lich".