NOEL and PEACE, for Christmas of course.
What you'll need:
Choose a can; that's important. This is a larger can that had green beans in it:
Next, take a black permanent marker and make dots of where you want your lettering or design. They're kind of difficult to see, but they're there. The ridges on the can might seem hard to work around at first, but they actually help keep the text lined up so that it's all in a straight line and the dots are evenly spaced.