saw blade clocks

I have some 10” table saw blades I want to make wall clocks out of and I want to glue a picture on the blade. My coz. gave me some pictures of large Elk that come around his place in LaPine OR and I want to make the clock for his wood shop. My question is how would I glue or attach the photo to the saw blade and have it stay there? What would be a good finish to apply to keep rust out and protect the face of the clock.

Thank for your help and Merry Christmas all

-- John at Sugarloft Mountain........Don't argue with an idiot; people watching may not be able to tell the difference.