Mottled rhymes with:
bottled, throttled, wattled, battled, belittled, bottled, chortled, disgruntled, dismantled, embattled, entitled, nettled, prattled, rattled, resettled, scuttled, settled, shuttled, startled, subtitled, tattled, throttled, titled, totaled, totalled, unsettled, wattled, whittled
Mottled sounds like:
mandalit, mandalite, manhandled, mathilda, mathilde, matilda, mentality, modality, modeled, modulate, modulated, montalto, motility, muddled, muddleheaded, mutilate, mutilated, mutuality