Capstone project need help with an idea

I have to do a capstone prejct for my school and I have to come up with a new or improved design for something. Do you have any ideas or suggestions as to what I can Do?

What is a capstone project exactly?

Designing and building a product, computer program, app, or robot to address a specific need, such as assisting the disabled
Conducting a scientific study over several months or a year to determine the ecological or environmental impact of changes to a local habitat
Researching an industry or market, and creating a viable business plan for a proposed company that is then “pitched” to a panel of local business leaders

What are the fields that you are focusing on?

tech and automotive