I tried to find an answer to something like this that may already be on the board put couldn't find anything within the past few months (unless I completely missed it).
My bridesmaids have graciously offered to plan a BP for me, and I provided them a list of ideas, who I'd like to be invited (no more than 6 or 7 people to keep it small) and a timeframe (and a couple of no-nos: i.e. no stripper please). Everything else is up to them based on what they'd like to do and their budgets. As of right now, no solid plans have been made but they're in the process of planning.
Every Bachelorette Party I've been to within the past 10 years (about six of them) has had the wedding party/attendees of the BP cover the bride's costs for the BP--whether it was a limo, a weekend getaway at a rental house at the beach, or a Vegas trip. I don't know if this is the way things should be done or not--I always figured it was normal since every one I've been to has done it this way. However, I'd really like to cover my own costs for the BP--have everyone pay a little less rather than pay more to cover my portion, regardless of what we end up doing for the party. What's the best way to go about conveying this to my bridesmaids without sounding presumptuous/that I assumed they would want to cover my costs?
Edit: Changed the discussion title to better reflect the question.