I own an excellent replica of the gun from the video game Portal made by Throwing Chicken props, so I’ve long followed the owner’s Facebook page. He has recently been posting about his scratch build of the “gigameter” from Ghosbusters.
I just realized tonight that a very lightly modified version of this prop appears in STVI as the crew is searching for uniforms contaminated with Klingon blood.
From Ghostbusters II
Originally made from a “Redman Corporation Power Scrubber Buffer”
I think I might buy one of the kits and see if I can modify it to the STVI version.