The PushInThe Grounders like Do-All,Champion - ($20-40) - and bolt it to an old pickup truck wheel & tire.... Cheap, acceptable throw, easil to move around... been usin one on the farm for 20+ years to keep sharp for bird huntin. Gives a pretty good throw, loosen the spring a little if it breakes the clay on pull.
Good little outfit for non pros... And FUN!!!