17th Birthday Party Ideas?

I will be turning 17 on the 26th of this month. I wanna have a party that doesn't cost a lot of money. I was planning on inviting girls/guys and my boyfriend. I was thinking a small party at my house with pizza, music, and games, but I feel that will be boring. Than I thought about having a bonfire, but it's been chilly here in Edmonds Washington. What should I do?