What is the Bath-Sub?
The Bath-Sub is a bath tub toy. It is a hollow, plastic sub with a clear front hatch that opens up. This toy is used in the bath tub or pool by both allowing it to float on the water or by filling the inside with water and allowing it to move freely underwater. In addition, the open area on the inside of the sub allows for the user to put other water proof toys inside to be able to dive to the depths of the tub!
This toy is based off of the principles of buoyancy.
As this toy is made out of three pieces of plastic (the hatch, the torso, and the propeller), it is a very cheap and fairly durable product. As it is possible to break plastic and snap off the propeller at the end, there is an age restriction of 4 and up.
Toy concept 1 | Toy concept 2
Carnegie Mellon University
January 25, 2010