I have seen on youtube where someone built one with a plastic base and a lenght of pvc pipe attached to the center. They then took LR, drilled holes on the ends, strung them together with fishing line and place around the pvc pipe, stacking them as they went. Also seen somewhat the same thing done, but with nylon threaded rod, drilled hole in the center of the LR and stacked as you go. I plan on trying this one day. Think it would work well with shelf LR.