Many years ago I was touring Japan. This was long enough ago that Caucasians were rare in Tokyo & all but unheard of out in the prefectures.
I was in a city park on Shikoku watching a guy pushing a vending cart. A 20-ish total babe came up & bought one of whatever it was. I watched with interest as I hadn’t been able to figure out what he was selling from his signage. Depending on what it was, I thought it might give me an opener with the babe too.
He pokes around in the cart with a skewer & out comes a bright purple octopus tentacle about 8-10" long & maybe 1" in dameter at the thick end. She pays, tilts her head back & dangles the tentacle into her eager mouth and …
Sorry, my train of thought took a detour just there, exactly as it did 40 years ago… At any rate, she ate her tentacle with obvious enjoyment. (And I never did get anywhere with her, despite valiant efforts)
I doubt that particular very authentic and presumably popular Japanese snack food will catch on in the US.