Marvel Mini-Books (1966, Creative House Promotions)

Marvel Mini-Books ran for 6 issues (1966–1966). Publishing format: limited series. a set of six super-mini comics produced by Marvel in 1966 to be sold in gumball machines (and later given away to members of the Mighty Marvel Marching Society from 1967 to 1969) and sold as cake decorations(!). Each of the six were produced with six differently colored covers -- blue, red, orange, green, yellow, and pale green. More at https://taint-the-meat.com/2017/01/16/marvel-mini-books/?fbclid=IwAR3OD9huHo1Ue5ExJ_k1cHY1XuMmbaAwTvlZJAr9JiV7ecxl-lfOFfKV9lQ