Cardboard box shell
Cardboard box shell is a shell created by SpongeBob from cardboard box for Gary. It appears in episode "Shell Shocked."
Description
It is a cardboard box with spots and spiral which was drawn by pencil.
Role in episode
After Angry Jack's Shell Emporium, when SpongeBob destroyed all shells and Angry Jack got angry. SpongeBob sees a cardboard box and gets an idea to make a shell for Gary. He draws a spot and spiral to look like Gary's old shell.