Have you ever played Jenga? Have you ever played JUMBO JENGA? I saw a giant jenga set recently and thought about how cool it would be to have one (or more) of those in a community for tournament play! I would set it up like any other bracket tournament and have groups of four play each other on regular sized Jenga games. Winners from each group will get to play on the big Jenga set for the finale.
Those giant sets can get a little expensive but if you know someone who is pretty good with woodworking, they wouldn't be too hard to make.
Picture credit to Mary Brennann