Spa days aren't only for adults these days. Younger girls are becoming interested in spa treatments as well. Host a spa sleepover party for either young or older girls. Simply plan several spa activities that are common for women, such as pedicures, manicures and facials. A spa sleepover party is sure to be a hit.
Create cute invitations that tell the guests when and where the party is. You can shape the invitations like a bottle of nail polish or an eye mask. Include with the invitation a "gift certificate" that is good for whatever spa treatments you are planning for the party.
Plan a few treatments for the girls, such as facials, manicures and pedicures. Enlist some additional adults and have stations set up around a room or throughout the house where the girls can sign up to get their treatments. That way, everyone is always occupied and there isn't too much down time for the girls. Sticking to manicures, pedicures and facials is a good idea because the supplies you need are pretty inexpensive and virtually anyone can handle doing them.
Give each girl a small favor basket filled with spa-themed items. For example, you can include an eye mask, fingernail polish, body lotion, bubble bath and face cream. That way, the girls can take the spa home with them. Another cute favor idea is to make sugar cookies shaped like spa items, such as a bottle of nail polish. Decorate the cookies with bright frosting and place them in clear plastic bags.