One looks like a link of some sort.
The other was originally two parts sellotaped together. I'm not sure of their composition (metal or plastic?) as they are very, light and flexible - looks like two (ultra thin) credit cards with a thin strip stuck along the top.
The (opened) bag they are in may be relevant, maybe not, is labelled; CLINQUANT DE RECHANGE 9767.06
Click to enlarge.
