Signature Prints - When the bad becomes the good

I have an abundant supply of old silicon mold sheets that I have made of random designs like chicken heads and the Breaking Bad head drawing of Walter White. These molds are often laying around and I am not a big "signer" of my work. Now I am placing them on the back side of the castings as a signature of sorts. These prints are looking better over time and now I realize I can just make the prints on the topside for rough outside work and not worry as much about the detail.