I saw these on Pinterest a couple of years ago, but never did anything about it because a) Jamie didn't know who Yoda was and b) kids don't give out Valentines over here. Yet. Now Jamie is obsessed with Star Wars and I'm about to introduce an American tradition to Sweden via Jamie's preschool class. Watch. In a few years - five, max - class Valentines will be a thing here and you can say that you know the lady who started it all with this totally untranslatable card.
If you want to make these yourself (though I understand it's probably less appealing if you're not in the business of introducing a cultural phenomenon to an entire population) just print out this PDF, attach a glow stick, and enjoy the feeling of being a Cool Mom like me.