Sorry if this is a repost, first time I've seen these...
http://www.llbbl.com/data/RPG-motivational/page_01.htm
Edit, those links didn't work,
Check out page 3, 6 and 7:
Hope
Epic Loot
Ignorance
Some of my favorites:
http://www.llbbl.com/data/RPG-motivational/hope.jpg
http://www.llbbl.com/data/RPG-motivational/epicloot.jpg
http://www.llbbl.com/data/RPG-motivatio ... orance.jpg
http://www.llbbl.com/data/RPG-motivational/ComeOn.jpg