Mancillas rhymes with:
casillas, pasillas, priscilla's, scillas, attila's, casillas, gorillas, guerillas, guerrillas, guerrillas', kabila's, manila's, pasillas, priscilla's, scillas, skoczylas, villa's, villas
Mancillas sounds like:
macaluso, maciolek, macleish, maglaj, maglaj's, maglica, magliocco, maglis, majolica, mangels, mangles, maniscalco, maquilas, maslowski, maxwell's, mazzola's, mcaleese, mcaleese's, mccall's, mcclaskey, mcclees, mccleese, mccleskey, mcclish, mccloskey, mcclosky, mccluskey, mccolloch, mccollough, mccullagh, mcculloch, mccullough, mcgalley's, mcgillis, mcgols, mclees, mcleish, mclish, mclucas, mcluckie, meaningless, measles, meisels, michael's, michaelis, michaels, michalak, michalec, michalek, michalik, michalowski, michals, michalski, michalsky, michel's, michela's, michelle's, michels, michiels, mickels, mickles, migliaccio, mikels, miklas, mikles, miklos, mikolajczak, mikolajczyk, mikulak, mikulec, mikulic, mikulich, mikulski, mingles, missile's, missiles, missiles', moguls, mongols, monkeylike, mosslike, mukluk, muscles, musicals, mussels, muzzles, mycology, mysliwiec