Hi everyone! My friend sent me a link, I don't know if this is common knowledge or not so I thought I'd share
David's Bridal has a lot of bridesmaids dresses on clearance, everything on this page is under $60, some as low as $20 (normally priced up to $120ish and down). Not all the dresses are available in all sizes or colors, but you might find just what you're looking for for your girls!
I finally have a dress for my friend's wedding (I'm her MOH) and got it for a great price!
happy shopping!