Kid-built in a few hours . . . this 7 inch tall basketball hoop can be assembled and re-assembled. We’re not going to toss a ball to make baskets with this project. Oh, no . . . we are making a little catapult to launch marshmallows at the hoop! Oh, yes! Sweet! Use this building project as a challenging independent study for upper elementary, as a whole-class engineering project, or use it to make math and science applications.