Here is a thought. If a series like 'The Outlaw World novels and stories such as 'Flame Jewels of the ancients' by Edwin L Graber (for example) is out of copyright, it could be good material to adapt in comic book form.
Be fun to read.
This is also available as an ebook
http://www.ebooks.com/238153/planets-of-adventure-2/graber-edwin-l/
Oh yeah and believe it or not, this cover is available as a mouse pad. Does anybody use those anymore?
https://www.zazzle.com/planet_stories_flame_jewel_of_the_ancients_mouse_pad-144642133164500747
Link
/?dlid=69252
Link to the book:
Planet Stories v04 06