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 bonito flakes and Japanese mayonnaise
Holding あんずあめ anzuame (apricot candy)
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”)
Choco Banana チョコバナナChocolate covered banana
Kakigori かきごり Shaved ice with fruit-flavored syrup (and sometimes condensed milk)
Yakidango やきだんご Grilled sweet, sticky rice (mochi) balls on a stick