Adding collar tabs to an existing shirt

barcgwcc

What would be the best way to add two following collar tab to a shirt?  I want to add one on each collar.  

 

Something like this:

felis

The easiest would be to do it by modifiing the shirt textures, but it will look flat unless you also modify bump and/or normal map.

Alternatively you could add a geoshell, and make it there.

If the collar doesn't dForce, and they usually never does, you could model it and use transfer utility with the shirt as source and banner as target.

barcgwcc

Thanks felis.  The tab doesn't go all around the collar.  Just one of the left collar and one on the right collar.  Here's a better example:

 

felis

It doesn't change the solution options.