Hey, sorry I didn't check in earlier! I was so busy it completely slipped my mind, I just remembered now I got home and saw the bag again ;-)
Dry-cleaning was my own first thought as well, but I'm VERY reluctant because I've had issues with that: I once had an item completely ruined, which is all the worse because I knew I could have done a better job just shoving it in the washer! The coat was pretty new (only had it a few months and it was a duffle, the sort of thing you can use for ten years easily, so a few months old is actually quite new), and even though my mom said she knew how to wash it in the w/m without a problem AND I'd seen her successfully wash all kinds of 'dry clean only' items over the years, I was just a punk kid and insisted on dry cleaning. The coat came back with the nap totally destroyed - it had a wonderful texture like a new fleece before, almost, and when it came back it was more pilled than than a work uniform sweater! AND it stank with a chemical scent. Since then I'm very reluctant to trust dry cleaners :-/
Mary, I wish I could try those dryer kits, but we don't have a dryer! But I'm thinking it's probably a knock off mix - I mean, it was made for the stationery brand, Paperchase, and their stuff is on the cheaper side - how likely is it really that such a large purse that is also such a complex design (frame, beaded detailing, reinforced bottom, multiple inner pockets) would actually use honest-to-goodness real velvet and still manage to cost little enough to sell at PAperchase price points? It's not even as though these guys can count on massive production quantities to lower costs, is it? Is there a way I could test the fabric to figure out what it is? I remember something called a fabric burn test, maybe?
I'm glad my questions are fun! I'm rather happy to hear this because I do feel like I'm not putting much back into the community, because it's rare that I have an answer to a question posted here - so I'm mostly taking, not giving back. So if at least the questions themselves are interesting, then that's something!
Chris, yeah, I think I'll skip the litter. It seems really easy the way Mary describes it, but I don't want to risk it with its own odor - even when it's not perfumey, it's a nasty dusty sort of odor. OTOH, storing the item for weeks in a closed container is absolutely no problem - it's velvet, and dark purple, and with brocade-y designs, so it's just about as wintery as you can get. There's NO way I'd be using this for at least the next three and a half months, probably more :-) At this point if it had been clean, it would have gone in the top closet with the moth protection anyway.
Overall, I think I'll wait and see if anyone knows of a way to identify the fabric, and if it's a plastic knock off it's probably worth just washing it. Otherwise, I'll go for Chris' orange peel and cedar combo.