I found this image of Xmas lights on freefoto.com:
http://www.freefoto.com/christmas/noel_1/index.asp?i=53
They have a nice selection of other Xmas photos as well...plenty to work with for this challenge if you haven't scanned in any of your own Xmas pics. I obviously haven't.
I did one version for each quality of Xmas lights: heat and light. To get the wide black lines for this first one I used dust'n'scratches filter on the top layer of the blur/dodge outline method, and used linear dodge instead of color dodge.
Phyllis