Think of the shows “Shark Tank” and “Dragon’s Den” – students need to convince the teacher(s) to invest in their product/service. Project includes rubric.
All students must prepare an in-depth Business Proposal for a new company of their choosing. This business can be in any field, as long as it is a for-profit business (though I'm sure requirements can be adapted to suit not-for-profit businesses).
They will submit and present their proposal to you, the investor (and ideally a panel of other teachers to act as potential investors). In other words, they are trying to convince you to invest in their business.