Simple Pushblock Made From Rubber Float
Over the years, I've found that most of the pushblocks that come with jointers and shapers provide little grip on the stock. Instead, I use a couple of molded sponge-rubber floats, such as those used for applying grout to ceramic-tile joints, which seem to hold on to the wood better than ordinary pushblocks. The broad aluminum bases on these masonry tools won't damage a cutter if hit, and they keep my hands well away from the cutters of a jointer or shaper.
—John Crouse, Wolcott, N.Y.