Why bother? I always said when it was my 21st/hen night etc that I would NOT like a stripper, and that if one walked in the room I would walk out. So why try to upset your friend by booking something that she thinks is going to be a stripper - but she doesn't find out until they leave that they aren't going to strip? It could make her really angry, and I don't see how it can improve her enjoyment of her hen night at all. Just go out and enjoy the evening.