Grey's Greetings on Etsy.
When I placed my order I found their email address and inquired about the "I miss ewe" card and how I really thought all of the cards were super cute and they would make my friend's day while he's deployed. So then a few days later, I check my mail and found out that they had doubled my order for free because they came from a military family and knew how important mail is. Simply adorable. It made my day, and I know it'll make his too... well at least I hope it will.
So if you're looking to buy some cute cards (they don't JUST sell lamb cards, even though they rock!) you should check out their site.
Or you should just buy me my very own lamb so it can do this!!!!