What are the best–and most entertaining–team-building exercises?

Question: “My boss has asked me to come up with ideas to help our staff become more team-player oriented. At a previous job she and a co-worker brought all of their office staff together, paired them up with Legos, and had one read directions while standing behind the one putting the item together. She said the results were fantastic because it showed the staff members how others perceive another giving directions and how they interpret them. Does anyone have any other suggestions on how to make being a ‘team-player’ fun?”  – Mary

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