The best kind of kid crafts are the ones that use a variety of materials (see ya later, container full of random buttons), take a long time to finish, and produce something that's not just another flat piece of paper that needs wallspace to be appreciated. This mobile project from Wise Craft is all of that and more: it can also incorporate found objects from your trips to the beach, the park, the woods, Grandma's sewing room.
Get yourself a spool of monofilament fishing line, a big pile of anything stringable you've got lying around, and something pretty or interesting to use as a baseāthe original project uses driftwood, but I can see a lot of possibilities here. And dare I say it, but I can see making a bunch of these and wrapping them up for holiday gifts: they're actually really pretty.