The last of my workshop offerings at Visarts is The Magic of Discharge Printing. This class may have the wrong title on the main class page but the link below takes you to the right place.
Discharge is the removal of color from a dyed fabric. I call it magic because it is! Really it's just chemistry but where's the fun in that. The results are fast and uniquely evocative looking a bit like x-rays.
https://reg130.imperisoft.com/.../38393.../Registration.aspx