That's doing it the hard way.
Just build one that fits in your pocket and walk past the line of shoppers at the register on the way out of your local Wally-World. Grab all the information in one swell foop.
'Course, you still got to find a way to run that information through the system to make the charges.
Perhaps an underpaid clerk or a not-very-honest store owner?
I have faith that the criminal mind will arrive at a simple solution to thwart this with days if not hours.
The cover story for the new multi-colored funny money was that it was supposedly difficult to counterfeit. There were online stories of it turning up in circulation counterfeited the first day.