I had the easy cop-out of "I'm pushing a wheelchair, I can't carry a sign", heh. Though the sign ideas I had were all much more in the "funny" category than in the "heartfelt message" category. One leading candidate was:

0x 57 6f 72 6b 20 74 6f 77 61 72 64 73 20 75 6e 64 65 72 73 74 61 6e 64 69 6e 67 20 74 68 65 20 75 6e 69 76 65 72 73 65 20 74 68 72 6f 75 67 68 20 73 63 69 65 6e 63 65 2e