Much of the school mascot clipart available also features aggressive looking characters for competitive sports. While this is fine for older kids, you may want to search for something more kid friendly if yours is an elementary school.
Don't have a friend or relative draw or design it for you. Just because someone is artistically inclined or has a good eye for design, doesn't put them in the same category as a professional cartoonist. Cartooning is a very specialized field - a talent that is honed over many years of trial, error and experimentation. You may have an idea of what you want, but executing it on paper is harder than most people think. It takes a professional.
Open these ornaments and then place your token gift or sweet inside it. Then close it again.