At first I started wrapping it all the way around and it was too cumbersome and I quickly ran out of garland. So I started doing the front only and zigzagging it around the S. I used my glue gun and staple gun to hold it in place.
Then I decided to hang it on my back storm door and so the back would be visible when leaving our house. I went back with some cheap Dollar Tree garland (one package was the exact right amount) and glued it to the back of the S.
I attached it with ribbon also found at Hobby Lobby.
And voila! It was pretty easy. I am happy with the results.