I'm referring to anything that is not inherently Disney. There's nothing "Disney" about:
Cowboy outfits
Native American costume
Mardi Gras Masks/Hats/Berets
Fisherman's Hat
Football Uniforms
Party Hats
Red/Pink Winter costumes
Inferno, Fireworks, Invisibility
...and I'll stop there. Some items you might be able to stretch to make a quasi-Disney connection, but they aren't truly Disney.
Thanks for mentioning the Kellogg's items, though...those aren't "Disney" in the least.
Yes except for magic I can all disney related info
Native America - Used to be part of Disneyland way back in the beginning of Disneyland. Frontierland still exists.Also in Disney land Paris their is a Wild Bill show with actors dressed in Native American Indian Garb as well as Cowboys.
Mardi Gras hats are sold in New Orleans at Disneyland and also at Port Orleans French Side, as well as Disneyland Paris.
Fisher man hat can be bought at Disney World
Football uniforms have to do with All Star Sports
Red and Pink costumes have no idea but I am sure it is connected somehow will have to think about that one.
So except for the very rare items I think it is all related to Disney somehow. Either by the land area or park resort. Dr. Who would be a really big stretch.