An unfair game to learn about Fair Trade
Newspaper, straws, scissors, sticky tape
Give one team at least one newspaper and a roll of sellotape. Give the other team only a pile of straws, 3 small pieces of sellotape and a pair scissors. Ask the teams to construct the highest freestanding tower they can in 5 minutes. Halfway through you could introduce the rule that the straw team may only use straws half the length of the original ones.