Venom comic backpack found at Hot Topic.
Black Panther patchwork tapestry throw blanket found at Hot Topic.
Superman isn’t in Marvel Comics…but Clark Kent, reporter (not a superhero), is.
He shows up in cute little cameos meant as a self-referential running joke. The best look we got at him was in Walt Simonson’s Thor 341, when Thor started wearing glasses.
Marvel’s Lois Lane has brown hair even today, a holdover from an extremely bizarre period of time in the late 1980s and 1990s when Lois Lane had brown hair instead of black in DC Comics.
In case you’re curious, this is (probably) legal, as in the US there are exceptions in copyright law for parodies and critiques.