Remember that waxgun thread?

Remember that waxgun thread that we had going back in November?
I am looking to make one now and I have some questions. The
innovation that Susan Chenoweth came up with, the plumbing
fitting that is soldered onto the tip… does anybody know how to
find it? I looked at HD and I didn’t see anything that fit her
description. Was it hard or soft soldered? Please help!!