Plankton's propeller pen is one of Plankton's many inventions. It only appears in the episode "Frozen Face-Off."


Plankton's propeller pen is a fancy blue pen that has a propeller at the top when Plankton activates it.

Role in episode

As Plankton seemingly surrenders to Mr. Krabs, he takes out a pen to sign the "surrender treaty." However, he quickly clicks the pen, revealing it has a propeller on it and uses it to escape through an air vent of the Chum Bucket.