Now a days bar code is essential for web page, visiting card, application, posters, social media etc. I know some nice technique to make your QR code more EYE CATCHING and ATTRACTIVE. That will increase your or your's products demand. Because it increase your demand. Various band has various logo and color. If the QR code designed with the brand color and logo it will more gorgeous. And i love to do this work. For your kind information, I'm a visual designer and artist.