I'm pretty sure once this trend gets it's claws stuck in it's going to be around for a while... carrying on from arm parties, we're onto finger parties and now amalgamating with nail art.
After seeing this on Honestly WTF's blog:
I just had to know where I could get one of these. And of course, once I set my mind to something I usually get 90% of the way to achieving it, so I have found the ring in question and, of course, stopped short of buying it (my credit card is wearing thin from overuse).
If any kind readers (ahem, boyfriend, mum, dad, anyone?) wants to purchase this for any reason at all, it's available from NY label, Bijules.