Gradution Party ideas?!

Ok so i am a senior this year and I had this great idea for a graduation party but it got way to expensive and my parents said no but i want to have like this sports related type of theme where you are entertaint so I was thinking Dave and Busters since its pretty cool there but I want to go somewhere for my graduation rather then you traditional backyard with a tent party any ideas I live like a few hours away from Philadelphia any places you know that I could have my party at.