I made Genevieve's tutu and now it's in her dress up suitcase. I stitched together handfuls of tulle (3 yards total) and then put it inside bias tape for a tie-on tutu. It's not great workmanship, but it's sturdy and pretty and she loves it.
You know, I'm not quite sure if I want to be doing something Halloween-ish, if this is the "Devil's Holiday." I grew up going to church or a barn party on Halloween, with the house totally dark to discourage trick-or-treaters. But now, as a mother, I have dressed my children in the cheap, easy costumes and trot them around to see the neighbors and the grandparents. They consume about two pieces of candy before the rest of their bag mysteriously disappears. We'll see how long this approach lasts.