Castings rhymes with:
everlastings, broadcasting's, everlastings, frostings, hastings, hustings, listings, postings, tastings, beatings, broadcasting's, coatings, cuttings, everlastings, fighting's, fightings, fittings, footings, frostings, gettings, gittings, greetings, hastings, hustings, keating's, lanting's, lighting's, listings, marketing's, marketings, meeting's, meetings, outings, paintings, plantings, postings, printing's, printings, ratings, seatings, settings, shootings, sightings, tastings, underwritings, weightings, whitings, writings, yachting's
Castings sounds like:
cadence, cadences, cadmus, cascading, casting, castonguay, catanese, catatonic, cattanach, cautioning, cautions, ceding, chattanooga, chattanooga's, chattanuga, chatting, cheating, chestang, chetniks, chiding, chitinous, citations, citing, coasting, coating, coatings, codding, coding, coexistence, coexisting, costanza, costanzo, costing, costumes, cotton's, cottons, cuauhtemoc, custodians, customize, customizes, customs, cuteness, cutting, cuttings