What to do this friday?

ok so tommorrow's friday oviously and my friends and I need something to do. My boyfriend and his friends are going to come so I don't want to have them come to my house because it is so boring. we were going to go to the football game but it is too far away. I would really appreciate suggestion? oh and yah I don't have that much money so the mall wouldn't work.

hmm
picnic xD
watching scary movies(with popcorn)
running through sprinklers
I don't know