I think these playing card Valentines over at My Paper Crane are great for kids who find typical Valentines a little too sweet and cute. There's even a free printable for the faces if you like.
Salt dough forms the base for these glittery heart sun catchers at Homegrown Friends and the kaleidoscope centers are made from melted beads. Such a pretty Valentine ornament, gift, or party favor.
Creature Comforts shares how to make these sweet paper clown ornaments that can be hung individually or together to make a garland or mobile. They can even be slightly modified to make cake toppers too!
These beautiful bowls use air dry clay and are easy to make. They'd make wonderful gifts for Valentine's Day, Mother's Day, or a special teacher. The tutorial is at This Heart of Mine.