What should I do for activities for my 13th birthday?

I am going to be inviting both girls and boys to my thirteenth birthday party, but I am doubting about some stuff. Like, I need ideas for activities. I can't do anything like 7 minutes in heaven, because of my parents, but I do not want to do anything lame like Pin the Tail on the Donkey. I also need help with a theme, and some matching decorations for the theme. Any suggestions?