I last successfully held a similar party in Japan: http://anysize.org/~ashi/fan-videos-nippon2007/ (Melbourne didn't have space for me last year).
Any fan-created videos will do if it's in English or has English subtitles!
If you would like a family seasonal picture card delivered via snail mail anywhere in the world, please message me with your postal address.
Happy Halloween from the year 2015!