A prosthetic arm worn by Finn in his Lich-free wish reality, known as "Farmworld." The grip at the end can be screwed off and replaces with a blade.
Grass Arm
The dormant form of the grass sword, having taken the form of Finn's arm since the events of "Breezy." It is seen first at the end of "Escape from the Citadel" and then again in "The Comet" and "Crossover."
Bubblegum's Gift Arm
A prosthetic arm given to Finn by Princess Bubblegum, after the events of "Reboot." As seen in "Three Buckets," the arm has a number of alternate functions.
Minor Arms[]
Name
Basic Description
Image
Vision Finn's Arm
When Princess Bubblegum is teaching Finn and Jake to mediate at the beginning of "Mortal Folly",Finn has a vision of himself in the future, with a prosthetic arm.
Pillow Arm
Seen worn by Old Finn in Pillow World in "Puhoy." Interestingly, it looks has a similar design the arms worn by Farmworld Finn and Finn's arm in the Distant Lands promotional image, only pillowy-er.
Old Finn's Dungeon Arm
When Jake looks into the prophetic crystal ball in "Dungeon Train", he sees a future version of Finn. He's an old man, decked out in dungeon loot, and his right arm seems to have been replaced at the elbow with a whip.
Candy Arm
Finn's Candy Arm, as seen briefly in the beginning of the episode The Tower. Finn gets frustrated by how unconventional it is to use, and it eventually explodes while Finn is cooking.
Finn's Candy arm, on a model sheet.
Telekinetic Spirit Prosthetic Arm
This arm is seen mainly in the episode The Tower, when Finn manifests the spirit arm while lying on the ground.
Distant Lands Arm
Finn's new prosthetic arm, seen in the "Distant Lands" promotional art.
Trivia[]
In the Japanese dub, Finn is voiced by Romi Park who also voices the main character Edward from Fullmetal Alchemist. Like Finn, Edward also has a prosthetic right arm.
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