I am thinking you picked that card and idea to have people sign it, right?...so you get my vote for one of the sweetest happy cards I have seen in awhile....and idea for it, as well....
I was nervous signing my name.My handwriting is pretty bad when I'm nervous.For example I had to fill out a college application today in block capitals and it was killer...
for some reason it seems awkward to do my signature on a horizontal surface, vertical surfaces seem more natural
sending to china would be fun its probably about $70 to send it there....and $3 for the china person to send it back