a "fear not!" angel
According to my mother, when I was a youngling my favorite character in the nativity play was the "fear not!" angel who comes to the shepherds in the field, in all his or her terrifying glory, to bring them "glad tidings of great joy" and generally scare their socks off. That's the sort of wonderful-terrible feeling this photograph, via the Londonist blog, inspired in me when it came across my RSS feeds a few days. Ago.
That and it reminded me of Blink.