“I actually used a 100w yag laser. If you are looking to do acrylic (engraving or cutting) you’re gonna want a C02 laser. We have 2 trotec flatbed C02 machines that are pretty good for that kind of thing. You could look into sand carving the acrylic too vs just engraving with the laser, usually has a nicer finish.” -Reddit user Vesuz

We make stencils with the laser. Cover it with your sand blast stencil material and then use a C02 laser on low power to cut through the stencil material but not into the acrylic then go with a second pass on hi power to cut out the shape of the pickguard, then sand blast. Should speed up the process quite a bit. -Reddit user Vesuz