Internship Projects

I’m looking for some good ideas for internship projects for summer interns at the buyside firm I’m at. Keep in mind that these would be for someone early in college with very little financial background. There will always be some one-off projects they can work on for me, but if any of you have or have had interns and come up with some good projects they can work on through the summer, I’d love to hear about them. Thanks.