"Astro" Slide Spoon Pipe (Submarine Pipe)
thingiverse
Here is the stem/slide: https://www.thingiverse.com/thing:6100395 WARNING: Made for tobacco use. The hallow is a little wide but comment if it's too wide. Some water pipes certainly have a bigger opening. You must pull the slide up to finish the bowl. There is no carb hole. I had a fusion 360 bug so it's 2.1 Requires a 9mm glass bowl slide which you can find all over the place on the internet, but Amazon no longer carries them.
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