"Una remera" is a t-shirt. I had it with the correct accets, originally, but the way taglines get posted boogers that up, so it's unaccented, now.
Check this out:
http://sternfels.blogspot.com/2005/07/tengo-una-remera-del-che-y-no-s-por-qu.html
Thanks. I thought of that, but hadn't heard that term used before, leaving me with, "I have a '?' of Che, and I don't know why."