Mario Odyssey: Amiibo Content Unlockable Without Amiibo

You don't have to worry about owning amiibo to get costumes in Super Mario Odyssey.
On the game's official website, Nintendo notes that "all outfits can be unlocked in-game without amiibo." That implies that even the wedding outfits with the new Super Mario Odyssey amiibo aren't exclusive to the toys. (UPDATE: Nintendo confirmed to IGN that the wedding outfits can also indeed be unlocked without amiibo.)
That said, we here at IGN have reached out to the company for confirmation on this