This is think geek, they make their bones by being directly in touch with their customers. half of the products in their inventory were either requested by, or outright designed by, thinkgeek.com customers. so much so that they now do a sort of venture capital thing, splitting profits with people who create things for "think geek labs" and "created at think geek"
so yeah, someone knew this was pretty much targeted right at people playing City of Heroes, CO, DCUO, and Marvel, and while DCUO and Marvel would ream them for using a character, CoX is a dead property practically in the public domain via abandonment. Of course, they've also thumbed their nose and C&D letters before, between Canned Unicorn Meat, and Jayne hats, and the like.