At a recent trip to Walmart I happened to stop by the automotive department and noticed that they are now carrying transponder keys. They didn’t appear to have a huge selection but I definitely saw Ford and Nissan keys which seemed to be priced at about $50 dollars. The keys they are using are clonable [...]

Most people don’t realize that Ford, Mazda and GM transponder keys can be programmed without a scan tool or a trip to the dealer. With Fords and Mazdas you will need to have two keys that are already programmed, GM’s require one key to be already programmed.
The procedure for Mazdas and Fords is as follows:
Insert [...]