Re: What to do with a bridesmaid dress from a cancelled wedding?
I would try and round up the other girls dresses and sell them on The Knot. I see a few posts like that and for the most part the dresses sell.
If you're worried about not getting most of your money back, you could find out how long the store credit is good for. You could always buy a few dresses on clearance for other weddings or an special event when you need to get dressed up.
I also agree the bride should pick up the tab on the dresses, but I'm not sure how you'd bring that topic up.