Balance board is wonderful. We’ve based this build on the Howtoons‘ Rola Bola project from MAKE Volume 08 [viewable here]. The Rola Bola is essentially just 3 pieces of wood, some screws, and a PVC pipe that translate to hours of low-tech fun. Any kid (big or small) you make this balance board for is guaranteed to be stoked. And whether you’re into board sports or not, the Rola Bola essentially just helps you hone in your center of balance, a skill anyone could use.