This is something i've been thinking for a while. A cheap alternative to building my own welded armature. These are cheap about 25$ on amazon. it's a dslr, light, reflector holder, phone holder that youtubers use to film from the ceiling. If you turn it and mount it on a wooden board, you have a 90% adjustable armature for your sculptures.

Amazon link, this one might be a little different. But the concept is the same. Bolt it to a wodden board and run a horizontal rod to stick to your model
https://amzn.to/48veVce

Aliexpress
https://www.aliexpress.us/item/325680...