Easy to Make Water Bong
You need: 600ml Bottle, A stem (or hose), a bowel/cone piece, a lighter.
With the lighter burn a hole a third of the way up the bottle,
and then shove the hose/stem through the hole allowing it to melt around it making it fit perfect.
Melt another really small hold on the other side two thirds of the way up,
this is your Rush Hole.
Just stick the cone piece into the end of the hose/stem, add some water.
And a bit o’ bud you are ready to go!