Luau 13 Bday

Hey,
Im turning 13, and this is my first year at a public school. Im gonna have a luau for my birthday, which is really soon! im inviting people my age and older like by a year or two... Im afraid theyll get board and stuff.. I need more games other than pass the coconut and the limbo and i mean they are all into spin the bottle and all the kissing games.. Is it possible for us to have fun without doing that stuff?
1) my mom will be there (you know)
2) some of them get really bored sometimes and i know i need lots of stuff planned! please help me
Thanks for your time
-worried