Ax Bass

The axe-bass is Marceline family heirloom axe that she turned into a bass. It makes it's debut in Henchman when Marceline plays and sings the Fisherman Song for the Second Nut Son. She demands that Finn murders the dimple plant with it, but he doesn't. She also plays the Fry Song on it, and it is shown in It Came From The Nightosphere that she is very protective and attached to it. Marceline becomes very angry when her father steals it, and the only reason she came along with Finn was so she could get it back. Marceline almost kills Finn with the axe-bass at the end of It Came From The Nightosphere, however.