Baking Powder Submarine Test Voyage - GenX Toy Nostalgia - YouTube
Who else had one of these? Best cereal box toy ever. : r/GenX
How do you build a self-submersible boat?
Let's try that Soda Submarine Part #1 - YouTube
Adult Sized Baking Powder Submarine | Hackaday
Baking soda submarine | Remember the small plastic baking powder submarine that came in Kelloggs rice bubbles? Peter Batchelor does, he and his three sisters would fight over... | By Good old