Aquarium fish ornament: hide house for your fish, small dwarf frogs, shrimp or other small living aquatic dwellers. Looks like a set of beer pong cups with a ball that floats above when used in water. Last few pics attached shows it in use (ball is attached by a thin thread that keeps it from floating away or getting lost. Very neat and funny!) Sold new at Petsmart for $18.99 before tax. Serious inquiries only!
Also have water heater and small tank available. Ask for more details!