1988 E.T. Movie Poster (Plastic)?

We have an E.T. movie poster dated 1988 promoting the release on VHS. It's plastic-y and 2-D (E.T. sticks out). It has "For promotional use only" "Not for sale" printed on it. I've looked on ebay, amazon, yahoo images etc but can't find anything like it. Anyone know where I could get more information about something like this or it's value? Thanks!