Wisegeek writes -

We love air hockey, but we wanted to see if the basic idea would work on real ice as opposed to using the air bearing principle.

We were on a visit up north and an approaching cold weather front provided the perfect opportunity. Unfortunately, we were away from our workshop, so we had to design and build our prototype without all the tools that we are accustomed to. In the end, however, we achieved a surprisingly great result…

Introducing Table Hockey on Real Ice – Link.