Jacques Soustelle discusses stela nos. 2 and 3 from La Venta; they show the presence of axes and minor deities (demons) among the Olmecs.
Jacques Soustelle, The Olmecs: The Oldest Civilization in Mexico (Norman: University of Oklahoma Press, 1985), 189-90
IV. Stela no. 2 and stela no. 3 of La Venta show, respectively, one and two figures in bas-relief, surrounded in each case by six figures or smaller dimensions that seem to be flying around and above the central motif, brandishing objects in the form of bars or axes. Are these flying beings minor divinities, something like the little demons that today are called chaneques, fearsome dwarfs that haunt the tropical forest?