I've gotten these before in the mail and never thought about it. This one had a little scratch off to see if I would win a free cookbook, or field knife set or both, and guess what, I won both, how lucky. Anyway, just wanted to see if anyone has ever signed up for this? Sounds hoky, like a scam, but worth checking if somehow it is legit. Do you really test stuff out for them? Or do they send you stickers and more license holders to test?