It's hard to tell from the photos, but the two bottom objects look like coins that have been deliberately shot or hammered into that cup-like shape. Could be metal buttons too (with the hook or the back part & hook -- where you would sew it to the cloth -- missing). Can you make out anything written or decorative on them? They look like iron with lots of rust - yes? The round thing in upper right appears to be a bead (filled in with dirt, etc.) or some other decorative object meant to slide onto a rod or wire -- like a small finial. (The hole is kind of big for a bead, so maybe part of a light fixture or something?)