Might your school problem be solved with a purchase? There are grants available for students and educators. Let me know if you want to write a grant and I'll help you find the right source. One of the biggest grant sites is Donors Choose. Start your grant with this template.
Sometimes a public service announcement (PSA) is just what you need. A PSA is a short video (30-60 seconds) that makes people aware of a problem and shows them how to address it. Here are some professional PSAs you've probably seen.
Maybe you have a topic that is larger than a single product could represent. Perhaps you'd be interested in building a website for interested people to learn about your topic. Your school account now includes the new Google Sites which will let you build a website easily.