Sweet 16 party ideas?

my 16th birthday is in less than 3 weeks and i have no idea what to do for it. i've been invited to 2 sweet 16s so far. the first one was 10 girls rode in a hummer limo downtown to a really fancy bowling alley and we all bowled for a while then rode in the hummer back to her house and hung out there for awhile. the second party is next weekend but this girl rented out a place and is having a dj come and its supposed to be like a huge dance party thingy with like over 300 people and it supposed to be hollywood themed. i dont want to copy either of these ideas for mine. i need some really unique ideas and it needs to be for oh umm maybe 15 people. my parents dont have a lot of money so its definitely not going to be like that giant 300 people dance party. any ideas tho!? please help ive got nothing and my bday is less than 3 weeks away! thanks :)