Here's a quick and easy one to setup. All you need is some Lego, two rooms a little distance apart and three members in each team.
In one room you start with 1 member of the team, a flat green Lego base and a pile of Lego bricks. The second member of the team is outside the rooms. The third is in the other room with a similar Lego base that has several bricks already positioned on it.The object of the game is to construct the same arrangement of lego bricks on the empty base by relaying information between rooms.
The person outside the rooms is not allowed to see either set of Lego.
Each of the members inside the rooms have to come out to give or get instructions.
Give the teams a time limit based on how many bricks are used.
At the end see how close the two variations are.