Here in the Sunny part of S. Fl. we have shuffleboard, same kinda thing. When your in Scandinavia, and everything is frozen anyway, after some "nips" of your ice cold Vodka, what else are you gonna do???
The brushes can extend the range of the "puck" and also "sorta" steer it, and make it more "team" oriented.
In Wisconsin, when I was there, I thought it was better with frozen turkeys, on the frozen pond, with the Vodka...