Any ideas to gain more submissions for my school magazine?

Answered

Basically we only accept art and writing from students, but not many submit each time we have a submission cycle.

We currently have posters around the school and raffles, but I was wondering what else we could do as people are still not really submitting. We have considered giving free promotional spirit wear and other stuff to each person who submit, but does anybody have any other ideas of what works for their school or what you would want in return for your submission? Like what could convince you to submit to your school magazine if you were hesitant or just uninterested.

Essentially, does anyone have marketing tips to gain submissions for a school literary magazine?

Thank you!!