Got an old lava lamp that's been emptied out, still has some of the wax stuck to the sides though. Was wondering what processes i would have to go through to make this into a functional bong? Grasscity offers best Lava Lamps
Clean out all the gunk then make it water tight add a joint after that go to your local head shop and ask for a slide and a down stem. Cool concept but ehh.
A drill and glass drill bit would be useful. Also aquarium silicone to make it airtight. Also invest in a rubber grommet stem and bowl, or glass on glass if you wanna spend a little more. Skimping on the bowl makes homemades lame imo.