DO NOT RECREATE. I can't believe I used to smoke out of these. I'm so glad I have glass now and not cancer. Please don't make “highlighter pipes” and “tic tac bongs”.
Hi-Liter Discreet Smoking Pipe – Pipe Dudes
How to Make a pipe out of a highlighter marker « Pharmaceuticals & Drugs :: WonderHowTo
Highlighter Pipe — Daylight Tofino
Hi-Liter Discreet Smoking Pipe – Pipe Dudes
Tricky Highlighter Pen-Pipe (Set of 3) – The Artist Life
High Lighter Pipes
Tricky Highlighter Pen-Pipe (Set of 3) – The Artist Life