Whilst still thinking about prom dresses, bridesmaid dresses etc. I came across this Etsy shop called Atelier Signature -based in Chicago.

I just love the 'mismatched bridesmaid dresses ' - they are really pretty and a great idea -either all the same style but in different shades or different styles but in the same colour. You can be really creative with your colour choices and each dress can reflect the bridesmaid's personality.

There are many Etsy shops selling customised bridal and bridesmaid dresses so its a  great place to find just what you are looking for as there are so many styles and shades available.