short winter formal gowns

If anybody has older style large size formal dresses for free or very cheap lmk! We r having r annual beauty pageant for r residents on 2/14/18! Need large sizes that would cover them up as they r modest! If anybody would be int in donating ur time to this much worthy event of fixing their hair and make up please lmk! It is an amazing event for them! Thx! short winter formal gowns