I have a lot of tools for different tasks, particularly mechanical and electronics. I’ve also become a product reviewer for Amazon, which has led me to get a lot of unusual tools that I’m likely willing to loan or share…
Particularly of possible interest:
9" Dewalt Angle grinder for those BIG welds…
Pass-thru RJ45 Crimper kit - the easiest way to do ethernet cable ends…
Stainless Steel Cable Tie Gun (w/ some ties) for when you need something stronger or more weatherproof than zip-ties
Thermal Imaging Camera - good for locating hot spots in equipment, buildings, etc.
Paint Sprayer, 700W HVLP High Power Paint Sprayers for House Painting Paint Gun - Probably bigger than what would work in the paint room, but good for big projects
A couple of different hot air plastic welding kits, also a hot wire stapler for plastics.
Triple lens bore-scope / endoscope camera (unfortunately not OK for medical use, so no DIYing those invasive medical procedures 
) 50’ probe, can do pictures and video recording…
Fancy automotive OBD reader / scanner
ART