I tore my ACL playing soccer and was a little terrified about surgery.  I decided to make a card for my surgeon with a guilt-trippy message about “thank you in advance for making me able to run again” and “I’m so grateful to be in the hands of such a respected surgeon” or whatever, and I put an image of a girl running on the front.  The hardest part of this was making so small an image, but it worked out. And he did a good job!