Sounds crazy but people are selling just single page ads out of magazines for $3 to $30 and more. Take your time & figure out if you've got any valuable issues/pages in any of them. Check Ebay to see some of what I'm talking about. It's a bit of work but there's a definite market for it. Here's an example.
http://www.ebay.com/itm/1957-MOPAR-...032?pt=LH_DefaultDomain_0&hash=item19c54cc890