How many did they print up for you? Since you were involved with the whole setup I would talk to Coke and say… I like the idea but they did not really turn out how I wanted. I would still use them and just ask that next time they send you a proof before printing 100’s or 1000’s of them. Keep Coke on your side and hopefully get some more free advertising out of them. This should still work out in your favor no matter how they look. Use it to work for you.