This is such a quick sew! I cut and sewed the entire thing in a couple of hours one evening (and I'm not quick at either cutting or sewing!). I lengthened the dress by 3 inches and added a bartack to the bottom of the back opening but otherwise didn't make any changes.
Fabric: IKEA birds $3.39, cotton voile for the lining from fabricland $5.95
Pattern: Oliver and S Roller Skate $0 (cost per use $5.66)