Well, it’s not really a “pattern” per se, more like a simple garter stitch blanket.
We use 2 strands of cotton or acrylic yarn held together throughout, and cast on 72 stitches. 5 knitters take turns knitting 5 inch sections of the snuggle. You can see the blog for the Oddball Pet Snuggles here: http://oddballsnuggles.blogspot.com/
I’ve attached 2 photos of our Snuggles. One is completed, and the other is in progress after two knitters have worked on it.