Every year I like to hunt for Halloween Arts YouTubes to show you some fabulous ideas for audience development during Halloween. Here’s a novel idea from the Springfield Arts Council. They are allowing people to rent their costumes for $15 (plus deposit). Halloween 2011 at the Springfield Arts Council COSTUME SHOP [youtube=http://www.youtube.com/watch?v=l61q5bwEz00&w=480&h=360] Fun trailer from…