I came across this site by Byman studios called . These are brilliant paper toys presented in their own boxes just as though it was brought from a shop...great!! There are twenty four of them so far and they are also offering the blank template out for further customs to be added to their site.
I've only built one so far but the rest are printed and ready to go, just need to get some clear film for the front of the boxes. The idea is not a new one but they have created something that is very well executed and easy to make.