Tryptamite
Bluelighter
I will post a crude diagram later
But basic idea is to blow your hits out through a stainless steel or glass straw submerged in a long narrow tube container of acetone.
The exhale hits contain crack and bubbling through acetone will absorb most of the excess crack into the acetone.
After a good session once the tone is brown it will probably contained some water vapour from the breath.
You could dry the acetone with mgso4 or cacal2, filter, and evap now dry acetone on a plate and scrape up brown residue with razor blade.
Anyone tried this themselves?
But basic idea is to blow your hits out through a stainless steel or glass straw submerged in a long narrow tube container of acetone.
The exhale hits contain crack and bubbling through acetone will absorb most of the excess crack into the acetone.
After a good session once the tone is brown it will probably contained some water vapour from the breath.
You could dry the acetone with mgso4 or cacal2, filter, and evap now dry acetone on a plate and scrape up brown residue with razor blade.
Anyone tried this themselves?