Why not get the kids to send a card to a relative wishing them a happy Year of the Tiger? It's always fun to stay in touch, and writing cards is good practice too. Maybe they could look up a Year of the Tiger horoscope to copy into the card, too!
There are 6 lovely mini Valentine cards in this set with the cutest little animals! They aren't specifically "valenintes" in that they don't mention the word, so you could use them any time you want to send a little message to someone you love...