these are two warhammer inspired dwarfen faces and a plate with a tankard on it. What to do with it? Well, i don't know either. We used them as small applications on a friends LARP costume.
The smaller head with the round beard has two versions. One with and one without horns.
The pictured examples where printed only in 0.3 mm. So the quality should get significantly better when you put it on 0.2 or 0.1.
Oh yeah, brush the surface with a wire brush and spray it with filler primer. That schould deal with the layer effect.