This is a very easy pattern for beginners!
It doesn’t need any patterns at all, or you can have it have a pattern. I actually just use any stray yarn around the house, since, really, the cats won’t care if it’s not the most beautiful yarn in the world ( I hope! 
)
Also, I have 3 ragdoll cats, one looks alot like the one I found on google to show you what Ragdolls look like, and one of my cats LOVE 
my yarn, and even though I know any yarn she picks is just the one that she has found at that time, I use that in my cat blankets.