unique without similar with others for bridesmaid

My school is hosting “operation Fairy Godmother” in order to collect semi-formal dresses for the end of year 8th grade dance. If you have any gently used dresses and/or accessories (shoes, etc) or know someone who does please let me know, I will pick them up if I need to. Please spread the word if you don't mind. Thank you! unique without similar with others for bridesmaid