First, allow me to say I am so sorry for your loss. It is great that the family was able to have this special time so shortly before she was gone. I am sure it is an extra comfort to her hubby.
I have been reading the posts, but had no idea until now.
I was looking for something else, and stumbled on this.....
http://www.quiltsbycindy.com/weddingdress.htm
just another idea for how to use your dear sister's dress, and the bridesmaids dresses.