We kept it simple with our school valentines this year. I printed off a cute printable from Smart School House and glued a carmel Hershey's kiss to it. Done and done.
The printable is designed to cover a set of water colors, but I used it as more of a tag. Plus, it is gender neutral and I was able to use the same one for both kids. This week has been so busy that we needed something super quick. Voila.
Happy Valentine's Day!