Monster Brains is a blog I follow that simply posts cool monster art from the past decades.

Monster Brains is a blog I follow that simply posts cool monster art from the past decades. It's not usually D&D-related, but they just posted nice large scans of the AD&D Picture Transfers from 1981, featuring art from the Monster Manual and Fiend Folio in full color. Some of you may remember these. I still have some stuck in the back of my Monster Manual II. With some effort, someone might be able to make some nice paper minis of the artwork from these transfers.
http://monsterbrains.blogspot.com/2013/01/advanced-dungeons-and-dragons-picture.html