Wash shirts in cold water, and tumble dry low. If you dry in too hot of a setting, the shirt may pucker around the embroidery. This can be corrected by using an iron, on lowest setting, and placing on the back of the embroidery for only one second. You can also correct this by simply washing the shirt again. Some shirt colors may show traces of the embroidery hoop placement. This will disappear after the first washing.

I'm a cancer survivor, and I just heard the story about you and your humorous T-shirts on NPR radio. LOVE your sense of humor and think its a great idea!!