I've been writing about free printable kids crafts since for almost a decade. I often link to the Family Fun website (from Family Fun magazine). But that site has now changed to Spoonful. Family Fun as Spoonful still partners with Disney. And you should check there for holiday and Disney crafts. And for Valentines Day, I can't think of a better theme than Disney "Frozen" can you? And Spoonful has all the printables you want.
Free Disney Printables from Family Fun New Site Spoonful