Bride's maid dress

My cousin is getting married in August and she's asked us bride's maids to find our own dresses. The color scheme that she wants is yellow. I've been looking everywhere for a nice yellow gown, but I haven't found one that I like. The ones that I've seen are all too puffy plus I'm pretty petite so I can't find my size either. I have an idea of the perfect dress in my head, but finding it is the problem. Maybe I'll look on the David's Bridal website... Wish me luck (but I have until Aug... so i'm not that worried yet.)