Some やたい (yatai) food stalls you can always find at Japanese festivals:
Jagabata じゃがバター Steamed potato with butter
Yaki ikaやきいか Grilled squid
Okonomiyaki おこのみやきJapanese style pan-fried “pizza” with ingredients such as cabbage, pork, shrimp, octopus, squid (okonomi means “what you like” and yaki means “grilled”)
Takoyaki たこやきPan-fried balls with octopus pieces and veggies inside, usually topped with sauce, shaved [...]