Do you miss the days of smoking gravity bongs, but would like to upscale that activity a bit with the help of minimal design and precision machine work? Check out the AC Greebs Smoking Steel, crowdfunding now on IndieGoGo.

The Smoking Steel takes the hard work out of fashioning a bowl — traditionally, the most difficult part of making a DIY water pipe — and allows herbal enthusiasts to turn virtually any plastic bottle (two liters or less) into a fully functioning smoking utensil. It was created by a “bunch of guys who went to graduate advertising school together” and “were also in the same high school at the same time,” so clearly, they were motivated by stoner nostalgia.

For the sake of weed-related journalism, ANIMAL was given a Smoking Steel to test. And it worked… Almost too well, as we forgot just how powerful of a hit a gravity bong can deliver. Make a few holes in a plastic bottle, plop on the metal bowl, and voilà — its ready to smoke. (Try “the Waterfall Method.”) The purists smoking with glass on glass connectors and all sorts of vaporizer gadgetry (which we also tested) may snicker at using a metal bowl, but this tool is effective and charming in a back-to-basic, retro-future sort of way.

See the Smoking Steel in action with our step by step GIFs.

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Looks good? Contribute to the IndieGogo campaign and get your own!

(GIFs: Aymann Ismail/ANIMALNewYork)