We used Genny Beyer's Puzzle Balls book to teach kids to hand sew- seems like she recommends that project for scouts... Anyway, fun projects, the kids love making the balls and the math lessons are part of the project including angles. I've had kids as young as 6 make puzzle balls. The only equipment is sewing needles and threads. Templates, scissors ( kids can cut out their own pieces with scissors { No Rotary Cutters Allowed!!! Too dangerous for children!!!!}