My first digital copy of the SWHS, bought via eBay, had a cover which read at the top "Every saga has a bastard son".
I just posted a request for artwork, other covers, that people have created for the Special:
http://originaltrilogy.com/forum/topic.cfm/The-Star-Wars-Holiday-Special/post/459832/#TopicPost459832
It didn't make sense to clutter this thread.