They should make a Secret Santa thing where you can gift items from the cash shop to other players. And maybe gifts from the trading post too, since anything relating solely to the cash shop will cause mass protests. I would just like to gift my friends something anonymously.
snowball fighting sounds fun, and they already have it, norn zone has it as a way to do a heart, and I think the random box from the cash shop does it too. dropping snowball piles in LA and other city's wouldn't be difficult to do considering how the did the pumpkins for halloween.