I played with Christmas lights over the course of 3 different sessions with my kids.   Using the lights in different ways, putting tinsel in front of the lens, using creative aperture with Lensbaby double glass optic, taking pictures from outside, looking in, letting the foggy window create foggy images.  It was a lot of fun, and I regret taking the tree down today, because it was a lot of fun to play with.  Until next year….