I had several part-time jobs in college, all with problems. But one worked out fairly well. I was the night dispatcher for campus security. I sat alone in a quiet room, and when a call came in for security service, I simply used the campus security radio to contact an officer. That was it. Campus was generally quiet.
In grad school I had a similar job. I simply had to sit in an office and answer a phone that almost never rang. The reason I got that job was I'm bilingual (English/Japanese), so could answer the phone in two languages. I got paid cash for that job, which upon reflection may have involved something shady. Oh well.
If you've got strong skills resulting from a special interest, put those to work if possible.