Rotary cheese grater - not as speedy as a metal store-bought one, but it does work. See pics - that isn't stunt cheese. 2nd pic shows grip method for good results. Did not want to rip off other cheese graters you see, so went with a different design. A wee bit of olive oil around the edges of the inner cylinder before use might help if its is sticky and hard to turn.  Cheese should be firm... but not hard-as-a-rock.Warning! Use at your own risk! * Possibility of plastic coming loose into food unknown, so print in a color you will notice if it breaks off! * Food contamination risk unknown. * Injury risk unknown. * effects of oil and cheese on non-food safe plastics unknown - keep it clean.