This is an original pattern on Ravelry by Carol Amich, so you can't purchase it. I think it's so funny (and extremely creative!). You can't drive down the road without seeing a poor, dead from being hit by a car armadillo around these parts. We'd be in BIG TROUBLE if they were zombies.
Did you look closely? Most of them have their brains oozing out...now that's funny (AND creative, in a funny living dead kinda way).
The whole Zombie thing is so "in" these days. There's even a college, Columbia College in Chicago, which offers a course about zombies in popular media. Don't worry though, you can always purchase The Zombie Survival Guide: Complete Protection from the Living Dead. You can't make this stuff up!