I made this quite some time ago (2010?).
Anyway, it’s just a simple model of a fork, spoon and knife. But, for some reason, they are invisible when I render!
I’ve put a box in, and that renders. I’ve changed the material of the cutlery, but that has no effect.
For the cutlery, set “duplication” to none in the object panel. That should get you rendering. You might want have something for them to reflect other than a flat colour.
Quick and simple render in cycles. No PBR. Just a glossy shader. With something a little more advanced you can get very believable metallic surfaces. But I’ll let someone else elaborate on that.