Hello,
As I saw nobody took your request yet, I tried it so you have something, at least until someone does better.
I usually don't do pattern, sorry, it is... Weird. I really hope someone else will give it a try xD
(and as I never do patterns I didn't even knew how to, so I did a hat, but in your house it is correct)
How it looks like in game :
If you know how to register it as a pattern and not a hat, please tell me. xD