I'm going to be having two bridesmaids - my sister and my h2b's sister. My h2b's sister hasn't worn a dress since she was 7yrs old (she's now 32). She has agreed to wear a dress for the ceremony. My theme is purple and i want both of my bridesmaids to have similar dresses. Anyone know where I can get cheap and cheerful dresses for them both to wear, for like an hour or so??