How do I plan a fabulous bachelorette party for little money?

I have been chosen as maid of honor for my oldest friend. I don't have very much money (since I am a full-time student), and neither do the bridesmaids who will be helping with the finances. My best friend suggested that we do a toy party, and that the ones she's been to have been really fun. We can't go to any clubs, because there will be underage attendees. What are some other themes I can consider for the party? What kind of foods should I make? Finger foods & appetizers? If so, what are some good ones? And what kind of games can we play?