This sounds like such a good idea, but in actuality, it doesn't work. The sidwalk chalk and stencils work fine, but the stencils don't work with the "stomperz." The chalk dust comes flying out of these things in every direction and lands on everything *except* the stencil you're trying to make. Your child ends up covered in chalk dust (including up their noses!), but the stencil is still un-chalked. We were SO disappointed with this one!