Just found these:
Harrison Ford's cameo in the Young Indiana Jones Chronicles. This is first time since Last Crusade Harrison Ford dawned the fedora. The opening and closing take place in Wyoming in 1950
http://www.youtube.com/watch?v=uw7y8mtvTLo
Harrison's cameo in "More American Graffiti". He's wearing the Han Solo pants.
"The name's Falfa. Officer Bob Falfa."