100Infinity / SCHRmm Jewellery / Sarah May Marshall

Riddle: there's an integer hidden in this photo — what is it? Answer: 100. You know, one-hand-red! Har har. Don't blame me, blame Japan's 100Infinity.

If the only red hand you want to wear is your own, bloody it up with these "white wedding" rings from London-based Dutch designer Laurie Schram, aka SCHRmm Jewellery.

Bonus link: for a less violent take on red, see these dyed natural sponge rings by London's Sarah May Marshall.

Even more jewellery:

• Science of Luxury (Australia) - body parts


• Tarbys Fabrik (Sweden) - hearts & flowers


• Megumi Jewelry (Los Angeles) - pearls & beads