I'm being horribly domestic this week: my Batman costume came with a sorry excuse for a cape, so I'm making my own. It'll be doing double duty this weekend if I can get it done, as I'll be wearing two different costumes for two different events. Since one of them involves little kids who were scared by my Batman costume last year (which made me feel really bad since that wasn't the point) I'm going as ROTJ!Luke Skywalker for that and Batman for the costume contests I'm entering.
Eventually, the 1/2 circle cloak will probably be used for three or even four different costumes: ROTJ!Luke, Batman, Phantom of the Opera, and maybe Vader (not really heavy enough for that). Right now, though, I only have two of the six pieces sown together, but I have all of tonight to work on it. Hand basting for now, planning to machine sew it another time when I have access to a machine.
I'm listening to the Star Wars movies as I work: it helps pass the time. Unfortunately, I'm going to have to run out and rent the prequels: I'm almost done with the OT! I'm watching them in reverse order for the heck of it. That, and the last one is my favorite.

Anyone else here making or wearing a costume for Halloween?