Mr. Krabs Cardboard Cutout is a life-size cardboard cutout of Mr. Krabs that is only seen in the episode "The Inside Job."
It is identical to Mr. Krabs. It has the same clothes as him and is the same color as him, the only difference being the fact that it is a giant cardboard cutout.
When Plankton is launched by Karen to the Krusty Krab so that he can extract the formula from Mr. Krabs' mind, he sees the cardboard cutout of Mr. Krabs in front of the entrance. Thinking that it is the real Mr. Krabs, he aims directly for it. He finds out too late that it is not actually Mr. Krabs, and since SpongeBob was holding the cutout, Plankton is forced to fly into SpongeBob's head instead.