I wouldn't use plates or silverware that I printed on my 3D printer unless I coated it.
Do you have one? I couldn't think of that many things to print when I made one, but now that I have one (kind of like the hammer and the nail), I can see lots of things to print now.
Relevant observation: "hammer and nail" effect seems to be the same thing as pg's Blub paradox[0] or the phenomenon that when you start carrying Duct Tape with you, you'll suddenly find some use for it every other day.
Because of that I think we should learn not to dismiss things just because we can't imagine what we can do with them. The imagination will most likely come with use of the tool.
Do you have one? I couldn't think of that many things to print when I made one, but now that I have one (kind of like the hammer and the nail), I can see lots of things to print now.