If you are up on coating glass plates, stainlees steel plates, etc. then do a first coat of unhardened gelatin, dry, than second coat of emulsion with hardened gelatine.

Then soak the proceeded plate after development and fixing and cool wash in warmish water, and the unhardened gelatin will release and you can strip the emulsion off and transfer it to almost whatever you want. I the good old graphics art wet layup days there was an actual job called a plate stripper.