Chinese locals have already demonstrated a knack for knocking together homemade flying contraptions and robots. Now one amateur inventor has created a full-fledged submarine built primarily from discarded oil barrels and tools bought at a second-hand market.

China Daily says Tao Xiangli made his underwater debut in a lake outside Beijing on September 3, 2009. The inventor outfitted his vehicle with a periscope, depth control tanks and electric motors, after spending two years and roughly $4,385 on the project.

A Chinese man inside a homemade submarine in a body of water.
An oil-barrel submarine heads out for a spin. China Daily

Perhaps it’s a hair less audacious than the farmer who wanted to test-fly his wooden ‘copter. But then again, we don’t see any escape system if the sub happened to go belly-up, figuratively speaking.