Wind-Up Family Bundle 1st-5th These Sparks have big potential energy! These wind-up Sparks show that energy from your body can be stored and released to make things spin, r... From $26.85 Motorized Machine Family Bundle 3rd-5th Our most popular motorized Sparks are designed and built to draw, roll and fool the eye! These three projects make the perfect enrichment sequ... From $26.85 Mini Maker Family Bundle Pre-K-K Little hands with big ideas can build independence and hands-on skills while exploring space, motion systems and optics! These are the most po... From $26.85