Sure. You can do any pattern, right? So, now is graduation. Just send a letter to every school in your area:
If they will fund you, you could make their school mascot on their coasters for cost. Then they can sell those coasters as a fundraiser. I am going to do something similar on my project--I'll sell the Rose Love greeting cards at cost to schools, organizations, etc. so they can sell as a fund raiser. see
http://tinyurl.com/greet-rose for my project.
And I'd love to get your ideas on mine--all the artwork was done by high school kids in South Africa, and 10% of the royalties will go to fund a scholar in South Africa.
http://www.thinkingrose.com/community/rose-scholar.html