Despite it's parentage of Lucas and Spielberg, Indiana Jones has never been the merchandising success like it's cousins Star Wars and E.T. Although one could blame that on it's historical surrounds or it's lack of wookies, it's really never been established why.
One of the best attempts at merchandising Indy was Kenner's 1982 "Adventures of Indiana Jones" line, released in 1982, a year after the film made it's debut, it was a nicely made if not sparse toy line that ran for two years. What little did come out was actually quite nice and now very collectible.:
More Kenner Deliciousness: