- You may be looking for the episode called The Smurfomatic Smurfolator.
The smurfomatic smurfolator was an invention Handy had developed in the 1980s cartoon show episode "The Smurfomatic Smurfolator". Its purpose was unknown at first, yet Handy was compelled to build this invention in a dream. Eventually, as the Smurf Village and the surrounding forest were being choked by tall weeds planted by Gargamel, its purpose was revealed -- the invention was a form of lawnmower/weed whacker.