Octopus Coffee Mug. Microwave and Dishwasher safe. 4" x 5" - 12oz Since the Octopus has no skeleton, it makes for the best escape artist. The Octopus has three hearts and can change their coloring to blend into the surroundings for perfect protection. A close friend thought they were cool too. While visiting the local aquarium on a school field trip he naughtily stuck his hand into the tank . The escape artist latched onto his hand, then landed on the floor. I laugh every-time I picture the shock on my friends face. I don't think he learned his lesson as an adult. Stuck his hand in a crevice rock-climbing and got bit by a recluse spider.