They're calling it 'mismatched may' and the idea is to knit or crochet a pair of whatever you like... socks, gloves, earmuffs... there has even been some discussion about whether a brassiere counts as a pair... I'm fascinated to see what people are working on there!!!
Anyway, the idea is that you make your pair... but they don't match... a bit like fraternal twins...
So I am working on a pair of sock made from crazy yarn... there's even a snippet of fun fur in there!
here's the progress to date: