Birthday

Hi My 14th birthday is coming up on October 17th and 21 people are invited to the party I planned to have which was Disco bowling....I canceled the disco bowling because I did that last year...i need an Idea for something to do that does not involve chilren ideas...do not mention laser tag, because that is boring as well...there will be adults at this party as well. PLEASE HELP ME!!!! I ONLY HAVE 4 DAYS LEFT!