I have the sell sheets for Outlaws, Afterlife, Indy Desktop Adventures, Ballblazer Champions, Star Wars (NES, two variants), The Empire Strikes Back (NES), Full Throttle, Curse of Monkey Island, X-Wing, X-Wing plus expansions, TIE Fighter, Defender of the Empire, Dark Forces, and Pipe Dreams.
Several of them have this template with the box art: https://www.ebay.com/itm/LucasArts-REBELLION-Star-Wars-software-sell-sheet/373314157935 Some of them have custom art. I'm planning to scan them across the next couple of weeks to put in Mojo's collection of PR materials but I can send you unedited copies if you want.
I also have the PR kit for Gladius with a large, foldout poster of the sword from the game and a book with some concept art.