The Real Thing crucifix

This was and probably still is in the V&A - it's made of bottle tops collected in Rwanda by Dr (of engineering) and jewellery prize winner David Poston, who lectures at Loughborough University and worked in Africa, helping people to make sustainable livelihoods by teaching blacksmithing techniques. (By the way, there's a sad/funny story about the coca-cola empire vs a film producer here, as well as a better pic of this object.)
But you might rather wear Poston's laser-welded treacle-tin bracelet, shown in this Guardian article about the V&As "Collect" high-end craft fair. Apparently "Ladies who wear craft usually have sculpted and/or twisted and/or painted hair or shaven heads, sausage-rimmed glasses, and dress Diana Vreeland-wise in black, to minimise the softening of the waist and to show off cunningly chosen and brilliantly combined accessories."