I was thinking earlier about how to make holidays extra- umm, extra-holiday-ish. Fireworks popped into my head. Perhaps they could be made by alchemists, maybe only available at certain times, in varying classes and sizes (ladyfingers all the way up to chrysanthemum bursts). I hate 'em in real life- I'm synesthetic and they mess with my senses on a number of levels- but in-game they could be a lot of fun... maybe have fireworks-shows someplace like Feman Falters?