Hambo

Hambo was Marceline's beloved stuffed toy seen in "Memory of a Memory." She originally was given this toy by Simon Petrikov, who found it in a derelict toy shop following the Mushroom War.

She loved it ever since she was a child, when she replaced its left eye with a button from her jumper and her last piece of thread. While she was sewing the button onto him, she said, "I'm hurting you because I love you." Ash sold it to a witch to buy a new magic wand (which is a cherry blossom branch), revealing that because the doll was Marceline's favorite thing in the world, it was valuable for making potions. When Marceline found out, she furiously dumped him, shrieking "It's over, you psycho!"

Appearance
When it was first given to Marceline, as shown in the flashback in the episode "I Remember You," it was red, had two blue buttons for eyes, and a stitched smile. He resembles a sock monkey, due to his long legs and arms. Two more buttons were sewn onto his butt. In "Memory of a Memory", the toy is much dirtier and is covered with stains, patches, bandages and repair stitches. The toy is extremely faded, but there is still a red tint to Hambo, meaning that Marceline had never sucked the color from him in the many centuries of ownership.