Follow the cutter instructions. You will find it does not take a great deal of pressure on the handle to score the tile. Press on the handle and it will snap the tile on your score mark. Practice a little. (remember the extra tile you bought) Don't get upset if you crack a few or the tile does not snap on your mark. They are cast ceramic and contain air bubbles and other imperfections that sometimes causes them to crack unevenly.
More elaborate wine glass racks can be displayed. http://classicfree30v4.populiser.com Metal racks with grape designs are appropriate for most décors. Many have shelves above the wine glass racks. You could store accessories here like collector glasses, wine buckets, cozies, a cork collection, or bottle openers. Many cost under $50, but a steel, contemporary wine glass rack can cost over $100.