Overlap Normal Maps on Unique Ball Shapes w/ Materials

The title is a bit confusing but basically, some of the unique ball shapes (ex. Golf Ball, Soccer Ball, & Toy Disco Ball) have normal maps, but when you use a material with them that normal map goes away, so it stops being a golf ball/soccer ball/whatever and just becomes a sphere with 2 windows.
I think it’d be nice if the normal map of the ball itself stayed, and appeared above the selected material.

For example here’s the golf ball shape without a material, and with one:

And this is what I would want it to look like with the material:

(ignore the weird background, I had to rotate one of the images so they would line up better)