I personally like the 2nd one best, the winnie the pooh one. It's cheap, and it's really cute, and it brings back memories of me sitting infront of the tv listening to the christopher robin song

and I don't think you'd be matching too much if you got the car seat and diaper back to match!
If I have a girl one day, everything of hers is going to be pink, sooo

I definitely don't think matching winnie the pooh things is a bad idea.