I thought about getting a white sundress for my TTD, but then I thought that it might become a little too see-through if we did any shots in the water. I actually ended up finding someone who is selling a cute wedding dress for $50, it has a tear in the hem, but I figure I can fix that easily and who's going to notice it in a TTD anyway. Maybe other people have been able to find some sundresses that had more layers or thicker material, but everything I found seemed a little too risky to me.