Most of what ya want is probably 2d laser cutting/engraving so I'll focus on that.
This guy is good for cutting thin gauge metals as well as engraving lots of stuff including plastics.
Can cut a range of metals up to a 1/2" thick.
Mostly nobody ever asks but you can make damn near anything. I charge more for design.
Same with Traditional 3d prints, you can make anything. The parts are weaker and the process is a pain but the parts can
be more intricate.