What should we do at my 14th b-day party?

Uhm im gonna buy food. What else should i buy i mean i got food & drinks. But what should i buy to entertain us? Like im gonna buy a beach ball and im gonna write crazy dares all over it then when we catch the ball whatever your thumb is touching yhu have to do. Were also gonna prank call, watch scary movies and take pictures and dance. But what kind of fun stuff should i buy?? Oh and we might play chubby bunny.