Well here is one of the biggest finds of the summer.
In a response to the video, the kids from Sweden bought the following:
We bought the tarp from a store here in Sweden. We're sure you can find a similar store in your country. The tarp is a PVC (extra heavy duty) tarpaulin. Sticks and balls are from a game called floorball. Dimension on the tarp is 14x8 meters.
I wanna play! Looks like you guys had a blast. Resteeming on my blog about adult social sports.