It's fun to go shopping in your own closet for new refashions. I found the bridesmaid dress I wore in my brother's wedding. It was stashed away in my mom's closet, actually. I was much larger then, but I did like the dress. As far as "bridal party" gowns are concerned I thought it was quite lovely...
It didn't fit too well, though, so I made a few changes and updated it to a shirred bodice sun dress.
For my full tutorial on the process, feel free to see my original post :)