I only have a 10W Diode laser so materials can be a bit limited, but I can still do glass also and mark good stainless steel, also anodized aluminium plates since you basically cut the coating, then I saw some people spray paint multilayers on canvas and engrave on that. It is time consuming though, that is a 30cm square image and took about 3 hours after some tweaks with initial tests at 4+ hours. I am actually looking at screenprinting as a nice option but that will come when I am willing to drop the money , for now I decided I should test straight up block printing , the engraver I think can cut me stencils on wood but if that is sucky I could try stencils on laser rubber and just roll fabric paint or whatever surface I am working with paint over I think. The screen printing I think would be a great addition to the bleached and reverse tie-dye shirt types,and with rubber I guess also you can do pad printing, but the rubber is pricey over time vs I feel a screen.