This cover was a promotional item for the Wayne Center for the Arts in Ohio.
"The Eye of Aga-Moo-Tou"
Continued from Tales of the TMNT #21 and continues in Tales of the TMNT #52.
*The Wild West C.O.W.Boys of Moo Mesa and the TMNT meet in the Astral Plane where a battle between an ancient terrapin sorcerer named T'sou-T'An-Jin and Savanti Romero takes place over the possession of a powerful artifact called the Eye of Aga-Moo-Tou. *Source: ninjaturtles.com