Three-legged racing
Lantern send-offs
Mask-painting
Onigiri/Takoyaki/other food-based things to try out
Trivia
"Fortune" Booth -- because Prince and Vick need their fortunes to say they'll get married. To each other.
Dress-up pageant for Miss Lunar Festival! -[ This event would actually make it so if the player won, based on the judging of all those participating, then they would get a special title "Miss Lunar Festival" that would give them stat boosts decided by Dark-sama.
Oh, and a chance to get Lunar Festival pets -- Goldfish (Red, Blue, White, Black, and White). I could write up stats and attacks for these if people wanted it.