I was thinking that if my boyfriend and I got engaged, and his mom asked to make a dress for me, I wouldn't want her to. Mind you, she is amazingly crafty and made me a beautiful charm bracelet/matching earrings, which I love. But I have been picturing my wedding dress for 15+ years, and if she made, it would be more of her picture of my dress, than my picture (does that make sense?). And at the same time, I would be really uncomfortable saying so to her.
I would love a quilt/pillows/photo album cover/etc made from old wedding dresses, but not my dress itself.