Tao Xiangli spent just $4,385 and 2-years building a fully-functional submarine, which consists of “electric motors, propellers, and even some extra fixings, including a periscope and a depth control tank.” Continue reading for one more picture.

And, unlike this Chinese-made helicopter, it looks like he’s being allowed to take it for a spin. Tao tested the sub in a lake on the outskirts of Beijing, yesterday.

[via DviceGizmowatch]