Another holiday: Medieval Festival! There are towers in your town, Tortimer is dressed up as a knight with a helmet that almost makes him fall backwards. A mini-game where you can practice archery, and like some type of wooden sword fight. You also get the medieval furniture set during this holiday, everytime you win a mini-game or you give the "princess" (a really fancy cat that comes to town during the holiday) something she might request, such as roses. If you give her a golden rose she'll give you either a king, queen, or jester costume.

Amazing idea! How about at the end of the holiday they announce the King or Queen of the town and they get some sort of prize.

A "Music Festival" which is La-Di-Day, but with much more added! An entire music series gained by matching notes!

St. Patty's Day, and as you suggested, V-Day. Villager Romance would be cute!