I had heart surgery a few years ago to replace my worn out mitral valve with a mechanical one. I'm fine now, just have a few reminders, the biggest being that I can often hear the tick-tick-ticking of my valve as it opens and closes, a constant event thank goodness. I created this line of items over at zazzle.com for others like me with ticking hearts and just wanted to share. T-shirts, hoodies, mugs, hats, postage stamps, etc....there is also a greeting card in the event you know someone who is the recipient of one of these carbon man-made valves. The web address to my store is: www.zazzle.com/halleyg. I am in the process of creating a yoga line as well, which will hopefully be completed soon!