Students may be able to obtain funding for particular projects from outside the department. Both the H&S Dean's office and the College Provost's office have funding for students engaged in innovative work.
If you have a project you would like to collaborate with a professor on, consider spending two months of a summer being paid for the experience! This is great experience.
Similarly, the Dana Program through the Provost's office might be worth investigating, either for an internship or a faculty-student collaborative project.
This program can provide funds for an internship to rising seniors that is credit bearing, thereby defraying its cost to a student.
This does not exhaust the list of possible opportunities for students either within IC or outside of it. After all, there are grants, fellowships, and awards available from a variety of programs and foundations off campus. Looking into the assets available to you through the School, the College, and beyond is a wise way to make the most of your time here.