Price tags are a necessary item, make them as attractive as possible. Do not use white string or the large product tags from Walmart. I use gold quilter's thread on my coffee scoops; it is quite strong and hardly noticeable. On your bottle stoppers, tie the string around the stopper above the top o-ring so it doesn't cover or interfere with your design creation.
These tags are free to use and make any changes you like. There are a few names on the cards to show different fonts; naturally you would put your own name on the tags! Download: Bottle Stopper Tags. Download: Bottle Openers