What are some business ideas?

I am enrolled in a business administration bachelors program at American Intercontinental University. I have gotten an opportunity to earn extra credit, which I really need, by starting my own small business.I’m looking for business ideas. I’m looking to angel investor’s for funding so it has to be something with grown potential. I have an ideas to sell t-shirts and other products with motivation quotes on them and call it Motivational Sensational Products. Let me know some ideas.