Indianapolis Indians Randy Johnson bobblehead doll(s)

Found (2) of these promotional bobble head dolls @ Goodwill.  He played for the Indians in '88 and '89 when they were the Montreal Expos AAA affiliate.  They are ceramic dolls sponsored by Pepsi, Fox 59 tv, and the Money Store (stickers on doll). That leads me to believe that they may have been given out later after he made it big in the major leagues.  There is a sticer on the bottom that says "By Alexander Global Products" and calls it a "Bobble Dobbie".  I got them at a Goodwill store for $2 each and figured since he is a cinch first ballot Hall of Famer that they may be worth something to an avid collector.  I am anxious to here from you.