That sounds like a good idea! I would do grey, instead of black because I like it more and because grey is in right now. If you do a sweater, I'd get a thin one. I'm a size 2x most of the time and I don't like bulky sweaters. Like another poster said, Target has some very cute clothes in size 4x, I've noticed. Oh, one more thing! WomanWithin's sizes are bigger than regular stores. I mean, a 2x there would be way too big for me, so keep that in mind. I think typically a 4x is size 28/30.
There are a lot of Paw Patrol toys out there in all price ranges. I bet he'd love that. Same with Sponge Bob toys (though they may be harder to find).
This is true about WW sizes...but I have to say, I tend to order up for coats because of the possibility of layering....I'd still go with 4x for the coat. Also, I like the "perfect t's" from WW...they are just long-sleeve t-shirts, but the price is right and they are a nice quality. She would likely get use of out them..maybe pair it with a fleece vest
http://www.womanwithin.com/clothing...=1&PurchaseType=J&pref=npc&rec=Certona----but I would do a 3x for the fleece as it is stretchy.