A Digital Printing Network
I don't copy the images exactly but alter them as Irv does. As many have brought up here, buying graphics doesn't always guarantee you unlimited usage. Today everyone wants to sue you for anything they can. I'm not against anyone making money off their sweat and talent. But, if you put it up for sale then you should expect it to be used in any manner needed. To me it's like if you buy a car but then find out you can only drive it on Tuesday and Thursday.
As far as grabbing a low resolution image from the web, if you redraw it then you are really not using their original art are you? You are doing the actual work of making the point to point drawing. You are only using their low res art as a guide. Much like many teachers and artists have done for years when using an overhead projector to make an image to size then retracing it. Make sense?