They can be the target of pranks : people have been known to `` return to the wild '' these garden gnomes , most notably France 's `` Front de Liberation des Nains de Jardins '' and Italy 's `` MALAG '' ( Garden Gnome Liberation Front ) . They are often the target of pranks , known collectively as gnoming : people have been known to return garden gnomes `` to the wild '' , most notably France 's `` Front de Liberation des Nains de Jardins '' and Italy 's `` MALAG '' ( Garden Gnome Liberation Front ) .