This was a tricky one to film! I used flashlights to illuminate the snow covered trees at night, and for part of the time I was flying through a heavy snow storm. The spark did great, but for one of the shots I was flying towards the headlights of a parked car when the collision detector activated and the Spark veered to the side into a tree and fell to the ground.
I took it back inside, dried it off, checked it over, and took it back out for a few more flights!
Later on (after midnight) it stopped snowing and the stars came out, and since I had exhausted the batteries in my Spark I took my DSLR out to grab some photos of the snowy landscape. The light from the nearby barn lit the snow up and allowed me to get a lot of really cool astrophotography shots, and I've put the best of them together in a short gallery on my blog:
Illuminations from the attic: Strange Sights on a Snowy Night