From what I've seen, usually the wedding party (and even non wedding party guests) chip in a certain amount which will help pay for drinks, hotel, transportation, entertainment, etc....what do you think is an acceptable amount to ask the bridesmaids to chip in? I am planning this party for my sister, and she has 11 other bridesmaids. They are all emailing me to let them know the cost, which they will not give any guidance one. They say "keep it reasonable". The party is going to cost $2000 all said and done, and I am going to cover the excess. Right now I'm thinking $100 per bridesmaid......