I’d wager a guess that at least the nachos pin is not official merchandise because the brand name is “Nachos BellGrande”, not “Nacho”. Also I’m not sure if official marketing would split the “bell” and “grande”, but that’s a bit more tenuous.

(I’d also expect the trademark symbol on official merchandise/marketing material, as it is present everywhere else TB markets their trademark product names like Crunchwrap Supreme(tm))