Be Amazing! Squidy. Amaze your friends with a pet squid who obeys your command to dive up and down in a soda bottle filled with water. discover the secret of the Cartesian diver mystery as you construct this magical science toy. Explore the science of density and psychology as you amaze your friends with Squidy. Includes: Squidy top, Hex nut, Pipette, and Activty guide. Recycled plastic soda bottle not included. Ideal for ages 8 and older. A great choice for science fair projects.