Full instructions for making the slingshot with and for your child on the wonderful madebyjoel.com website: DIY Wooden Paper Slingshot. No time to make it? Find a Y-shaped small branch and use that instead- all you’ll then need is the elastic and the magazine pages for the arrows.
Make a couple of these for a fun-filled playdate. Position the kids a distance away from some target, and let the competition begin. Move them farther away as they get good at it.