I have seen those for bladed ice jigs, never seen the ant version. I know papaperch is into the blade soldering, maybe he has seen something like that?
Just got a new laser engraver here at work and might be able to custom make at least the base with circles and the hook alignment but not sure how the vertical hook holder would be attached. Literally just took the engraver out of the box yesterday so not up and running yet. Can cut things in wood and assuming that would hold up to the low heat solder for at least a little while. I will have some experimenting to do.