Plonka rhymes with:
golonka, golonka, banca, bianca, blanca, bojenka, branca, casablanca, cervenka, conca, czerwonka, danca, franca, glinka, golonka, inca, janca, janka, kunka, labianca, lanka, manka, martinka, maslanka, mediobanca, menka, minnetonka, pianka, pivonka, radinka, salamanca, sanka, shonka, sri-lanka, taganka, tonka, trinka, trnka, villafranca, vinca, zanca, zelenka, zelinka
Plonka sounds like:
palance, palansky, palauans, palinkas, palma's, palms, palonius, paulhamus, pauling, pavilions, pawling, peeling, peplinski, phalange, phalanges, phalanx, piling, pilings, pilling, pilnak, pipeline's, pipelines, pipelines', plaines, plains, plan's, planas, planck, plane's, planes, planes', plank, planks, planning, plans, plans', playing, plemmons, plemons, plenum's, plinius, plink, plonski, plowing, plowman's, plum's, plumage, plumages, plumes, plums, plunge, plunges, plunk, plying, polanco, polanski, polansky, polemic, polemics, polhamus, polhemus, poling, polinski, polinsky, pollens, polling, pollyannish, polonaise, polonsky, polynesia, pooling, poulenc, poulenc's, pulling, pullins, pullman's, pylons