Mustachio rhymes with:
pistachio, pistachio, pistachio, pistachio, braggadocio, pistachio, ratio, adagio, audio, borneo, braggadocio, cameo, claudio, dario, embryo, impresario, montevideo, oleo, patio, pistachio, polio, portfolio, presario, presidio, radio, ratio, rodeo, romeo, scorpio, stereo, studio, tokyo
Mustachio sounds like:
m-codes, machetes, macoutes, maestas, maggots, mainstays, majestic, majesty's, makegoods, manischewitz, maoists, mascots, masochistic, massachusetts, massachusetts', massachussetts, mastoiditis, masts, mazaitis, mazda's, mcdade's, mcdyess, mckids, mcquethy's, mctague, mctighe, mctigue, megaquest's, megawatts, meningitis, mestas, mestek, mestizo, minnesota's, misdeeds, misguides, misjudge, misjudges, miskitos, misquotes, misstates, mistake, mistakes, mistic, mistook, mists, mkhatshwa, mogadishu, mogadishu's, monastic, mongosutu's, moscowitz, moskowitz, mosquitoes, mosquitos, mostek, moustache, mushtaq, mustache, mustaches, mystic, mystics, mystique