Have you done much yet? I knitted my three boys so many of those 4ply themed jumpers.
Turtles, Thomas, postman pat, Lego come immediately to mind.
Do keep your patterns. They have been clamped down on by the copyright people and you can't buy them nowadays.
I had to scour the internet to buy a copy of an official peppa pig pattern that was printed in womans weekly. There are endless people asking where they can get it.
My wool shop explained that these patterns are, due to copyright, not produced any more.