It’s nothing off his teeth

This was overheard recently at a court proceeding.  The speaker was stating that something was easy for her client.  I believe it is a congruent conflation of  “nothing to it”, and “no skin off his teeth (or nose)”, both meaning something that is not difficult.  Anyone see another idiom in this malaphor?  Certainly it can’t be said after eating a spinach pizza.   A big thanks to Sam Edelmann for sending this one in.