He really wants a sweater

Our son lost both his front teeth this weekend.
Well, Dad helped to pull them out, but really, it was very good thing. They were so loose, it was really gross.

And so, he (our son, not his dad) wants a Gryffindor sweater.
Maybe the lisp is making me want to make him this thing.
So I'm playing with ideas again. This time, something simpler.
Here's a pattern idea for the sweater itself but add a knitted crest like this which is nice and simple, do the whole thing in dark red and gold.
Still thinking . . . .