I was sitting here in the dark on my laptop admiring my Christmas tree and thought I'd have a bit of fun. Might be overdone, but I enjoyed experiementing. This one was my fave. Compressions looks awful, but I wasn't exactly going for quality here, just fun. I tried doing different patterns but the longer I left the shutter open the bigger mess it became. This was at 5 seconds, ISO 100 and f16 I think.