In a cross-promotion with the NFL, Marvel published several issues of the adventures of SuperPro (see "selling out" above), because evidently children weren't sufficiently aware of professional sports. He was a pro football player who, after being involved in an accident with experimental chemicals, fire and ultra-rare football souvenirs, gained football-related superpowers, instead of burning asphyxiation-related death. Truly, almost too much thought was put into this.
Quick Kick fights with his blaxploitation.
Clearly, the one on the right is Tiger.
Tiger and Bunny is an anime show about superheroes who are blatantly sponsored by real-world corporations, sort of like NASCAR drivers. Each hero in the show represents an actual company (such as Bandai, Amazon.com and Domino's Pizza) that paid actual money to have their logos prominently featured in each episode. For example, here's the Pepsi-sponsored character, Blue Rose, in action, because while justice is a noble mistress, "Pepsi" is the signature on all the paychecks. In some ways, it's a brilliant piece of meta art, but in most ways, it's just a really, really long commercial disguised as a cartoon show.
Chris Snipes is also a promotional superhero that you can find at All Geeks Rejoice.