A response paper outlining how, in your opinion, the managerial accounting methods and theories can be applied to your area of management or work. Or to an area of work you are aiming to be in.
If you do not have a specific area or work experience, you can take a concept we have studied and applied it to a business you admire. (for example, how would activity-based costing apply to a movie theatre).
Limited use of outside sources should be necessary; your own application and thought is the purpose.