I need help NOW!

[Chase]

I guess for marketing you can have them split up into groups and each make up an imaginary business. Then give each group a budget plan and tell them they can only buy the imaginary products of one or two other groups. That way, there will be competition, so each group has to come up with the best strategy to sell their products to the other groups. The group that manages to sell the most imaginary products to the other group wins.