I've always liked making things from one of my favorite materials, cardboard. This was my latest idea, it's a simple game that you can play with friends or just anyone. basically you just take some cardboard boxes, (ex: cereal boxes), and make a boundary and then the goals. And for the ball, you can use anything that works for you. I used a paintball because it's a good size. Then lastly, add some lines and random advertisements to make it look better!
Anyway it's a fun simple thing to make when you're bored and it's pretty fun too.