I used to clip and save the Safetypup cartoons on the milk cartons we'd get at lunch in junior high. I have no idea why (you should see my old Twix wrapper collection from back then). I even have some of the brown Safetypup "variants" from chocolate milk cartons.
Here's instructions from the National Child Safety Council on how to draw Safetypup:
In the Dungeons & Dragons fantasy role-playing game, illithids (commonly known as mind flayers) are monstrous humanoid aberrations with psionic powers. They live in the moist caverns and cities of the enormous Underdark. Illithids believe themselves to be the dominant species of the multiverse and use other intelligent creatures as thralls, slaves, and chattel.