There have been several "Minecraft" quilts posted on the board --- that is something that is supposed to be very popular among the kids. One was just a large block quilt of the "face". Someone will post here that can add the link to go look at them....i don't really know how to do that.
Best of luck with the quilt....i and certainly hope that this little guy gets his new heart and makes a full recovery!!
Only suggestion i'd make is that it be very washable....it will surely get lugged around to a lot of places !