We’re calling it: This is THE YEAR of fun hair looks. We kicked off spring cuckoo for pastel hair and rainbow roots. Just in time for summer, it was all all about hair gems. Now? We’re mad about hair stenciling — the trend you’re going to see at every festival all season long. Artist and hairstylist Janine Ker has been racking up the Likes on Instagram and setting off a beautiful new trend with her artfully designed and executed hair stencils. Hair stencils are… exactly what they sound like. It’s kind of like using the principle of wall stencils to…