
But on the theory that people spend money anyway, why not consider a gift of bees for $30.00 via Heifer International? Especially if you're looking for a project for an annual year of giving (as suggested here). Heifer has a little valentines section with suggestions & a PDF of (free) cute vintage-inspired kid's valentines cards.
ciao-meow/GGCM
PS: Here are two more wonderful DIY card ideas: A sweet easy watercolor project & a whole Flickr set from generous Samantha Hahn (see her pretty Maquette blog, too).
(illustration via Reusable Art/GG collage)