I'm a packaging tape manufacturer and we have had some extensive design and development work done on my website, we have had a custom built price generator made that calculates the price of our products. The whole development has taken 6 months so far, but i feel it's well worth it.
We produce printed tape, please check it out and give some feedback, good or bad ill accept it all gracefully lol
here is the link -
http://www.printedtape.net