Wear your heart (or eye ball or brain or tooth) on your sleeve, lapel, jacket or even a backpack!
This line of enamel pins is modeled after the human body. More in a biology way than a weird way, though. Like you could easily imagine seeing one of these pins on the lapel of someone in school to be a cardiologist or optometrist or a neurosurgeon or something.
You could also use one as a reminder of an old proverb. Really. Just go hit up any of those sites that collect ancient sayings and start browsing. They’re always saying things about eyes and teeth and minds and heart. You’re bound to find a sentiment that you like more than the others. When you do, grab the pin that fits the saying and keep it around for a visual cue!