All you need is the printable (at the bottom of this post) printed on some card stock, a pair or decorative edge scissors (although straight looks beautiful, too!) and you’ll also need some clear wrapping tape.
Simply trim out the strips with the scissors, creating a pretty edge. (You could also use a punch to make it even prettier!)
Wrap the strip around the napkin, then tape it on the back. An in about 2 minutes, you’re done!