Medic Alert Bracelet

I had the unfortunate pleasure of having a blood clot in my lung in March which nearly killed me.  According to my doctor, I need to get a medical alert bracelet because I’m on blood thinners to prevent more clots from forming.  I’ve looked around and there really aren’t that many that look good.  Of course the ones I like are over $600.  If any one knows of a good place to get a deal on these, let me know.