Okay. I placed a mason jar on my scale, and tared it to 0g. Adding the rosin powder, it read 42g. So I added 99% isopropyl alcohol to the powder until the scale read 84g, making a 50% concentration by mass. The resulting very chunky solution is sealed in the jar, shaken to mix, and then placed on the shelf. It's supposed to dissolve over a period of 24 hours, so we will check back in on it around 19:30 tomorrow.
@elfi I need to get some glycerin to stabilize it, but yes.