My dog has worn many bandanas over the years and I recently got a rescued pit bull, so I thought I would make them matching ones. You could, of course, do this for yourself as well!
I googled for some stenciling letters and copy and pasted them to form the names I needed. Printed them and cut out the letters.
Using a black marker I roughly stecilled in the letters.
Then I hand painted the letters with fabric paint (I actually used airbrush paint, but other types will work too) following the instructions for heat setting the paint.