Pontillo rhymes with:
santillo, tantillo, bustillo, capetillo, cutillo, delcastillo, patillo, pattillo, pestillo, petillo, portillo, santillo, tantillo
Pontillo sounds like:
panhandle, pantaleo, pantel, pantle, pendell, pendley, pendola, pendyala, pentothal, pimental, pimentel, pindell, pointedly, ponytail