Hilarious Bend-Ems? bendable figures SpongeBob Squarepants and Sheldon J. Plankton are paired up for endless comedic adventure. Plankton is a planktonic copepod who runs the Chum Bucket restaurant alongside Karen, a waterproof computer who is his sidekick and wife. The Chum Bucket is highly unpopular in Bikini Bottom because it serves chum, a type of bait made from fish meat.