This one was literally just listed on ebay (not my listing...)
Since you said you're interested in Chargers and AFL Pennants, I'm pasting the link...
http://www.ebay.com/itm/San-Diego-Ch...4AAOSwjDZYeSUQ
This is my personal favorite Chargers Pennant.
Here's another that's pretty nice...
http://www.ebay.com/itm/San-Diego-Ch...3D142244510959
Bittersweet, as they just confirmed their move to LA (BOO!) But hope this helps, none the less!