Probably from the art for Super Mario USA which was the Japanese version of the western version of Super Mario Bros 2. It was a Japanese only release but Nintendo would sometimes use that artwork for July 4th issues of Nintendo Power or for their post 9/11 article.

Edit: I'm wrong. It's not from there and I can't find the image. I know what you're talking about and can remember it too but I can't find it at all. There is an America suit in smash ultimate and I think it's from Odyssey but I could be wrong. Also found this:

And

[–] Blakey@hexbear.net 5 points 2 days ago

mario has fumbs:(

[–] Dirt_Owl@hexbear.net 4 points 2 days ago* (last edited 2 days ago)

Interesting lmao that AI is cursed