What to do with Old Mopar Magazines.....???

Sure. Those are from magazines from the 50's, 60's and 70's.

The OP has mags from the late 80's, 90's, 2000's. I don't see anyone paying for cut out ads from those years.
I can't see paying anything for magazine ads from any year but people do it. Especially if it has a picture of something they own or want to own or used to own etc... Trust me 70's & 80's ads are selling. I cut all the ads out and at least stick them in a box. I myself purchased some older mag's from a thrift store because they had pic's of Cars I liked in them. I am buying some other stuff right now with Mopar pictures.