Conopas, made from stone
in the shape of a Llama, were thought to have supernatural
powers and were used in (Inca) fertility ceremonies. Amulets
like these were used in rites of (camelid) herd multiplication.

Info at; http://www.academia.edu/2367584/Illas_and_Conopas_Idols_of_Herding_and_the_Inkas_in_Pierina_Area_Callejon_de_Huaylas_Peru