Any cheap party ideas for a teen?

I'm going to turn 14 in July. This is the first birthday party I'm going to remember. I would like it to be memorable and fun! And....On a budget. Also we don't have a lot of space and our backyard is a mess. I'm going to invite 4-5 people. I have some cute and fun ideas but I still have to talk to my parents about it. (Painting glasses with nail polish.) Our town isn't really big. The next town over is bigger. There's bowling alleys and things like that. My dad suggested the boardwalk. If yo Yahooers can help me out by giving me AFFORDABLE party ideas, I would be so grateful. xoxo Thanks for your help!! :):):)