The trick is to take your vision and turn it into something that can be mass-produced. It can be simple and visually unique and still not cost an arm and a leg. Use stickers instead of engraving. Use parts that are affordable and available and put them together in a unique way. Test out several designs in the beginning before you commit to one big run. I was surprised at how many places had height restrictions on tap handles, and how many we had to cut down 4" to make work. And remember, the cooler the tap handle the more it will be stolen. You will come in on a Monday to that account, and they will say "man, no one knows what happened. Can you get us another?"