Same idea, suggest a photo/subject/place for Night 200 and gain some fame & glory (+ I'll buy you coffee in Helsinki some time), or not. Or end up appearing in the actual photo.
I don't know, whatever.
Post your suggestion as a comment for this post, Facebook page's similar post or email to ozzwald(at)jippii.fi.
Extra credits for using postcard.
I'll be the prestigious judge.