Most concetrate bowls and attachments are incredibly fragile, even in the realm of glass on glass.
I don't make the wax anymore, but I have some schematics for DIY extractors I conjured up when I was on a lowes binge. I still use one of the schematics to make hookah handles (incognito extractor for sure)
We mostly made wax with clippings from some larger grows, and shake off bigger bags. This was a different time in my life, back when I saw 20-30gs of shake and considered it waste, so we extracted it.
What's funny is the wax turns out a golden green yellow, and it almost appears metallic when it's harder. compare it visually to the wax you would use to seal an oldschool parchment with a stamp seal.
The impact is instantaneous. and usually after about 3-4 dabs my night would blend into obscurity. Watched alot of Mad Men, killed everything on netflix in about 2 days with a little over 4g of waxed smoked by myself.
Alternatively we decided in the end of our dab phase that we were tired of breaking glass blowls and downstems, and even in one case, an entire water pipe (over 600 bucks in glass in one fell swoop) and we innovated.
We went out and bought a brand new 30 dolalr soldering iron and had a local glass blower take a glass tube (used for blowing small pipes) and just cut it down to 12 inches and smoothed the edges.
We just put it down by the wax on a little glass dish and reverse dabbed the soldering iron into the wax while inhaling on the straw. Worked wonders.
Someone might be able to tell me if there is something unsafe about that, but it defintely did not have any solder on it. It was brand new. Tasted great too.