Too smart!!! I love the Zone!. So my thought was to use my skate bearings (100 for 25.00 at vxb) and adapt the 3/8 threaded rod to said item to be spun. One adaptor for each end. This would let me have a nice smooth spin in the bearings and attach the drill to either end! My afterthought is with a cone shape on the adapter any size diameter pipe can be placed onto the cone at each end and make sure to keep a good squeeze on the boards to squish the cones into the ends of the pipe. The cone could be one of those el-cheapo hole drilling bits that look like a stepped cone but it is set to fit into a drill???