I used to wear a LiveStrong wristband in honor of my old and very dear friend Kevin Kelly, who passed away from cancer a few years ago. Now, I have a new wristband to wear for myself, which is very popular among Australian cyclists. A cycling teammate of mine gave it to me. It says simply "HTFC," which stands for "Harden the F*ck Up." The inspiration is from this Australian video:
Wristbands can be ordered here.