Rusalka rhymes with:
alka, galka, kalka, palca, palka, alka, belka, bilka, galka, havelka, hilke, homolka, ilka, kalka, kolka, koudelka, kulka, melka, opalka, palca, palka, pavelka, pelka, polka, popelka, smolka, tylka, veselka, yarmulke, zilka, zilkha, zylka
Rusalka sounds like:
rachel's, rachels, rascals, razaleigh, recalls, reckless, recluse, recoils, recycles, regales, rehearsals, resales, reseals, resells, rickels, rickles, rickles', riklis, riskless, rissoli's, rochelle's, rockwell's, rogalski, rosales, rosalez, ruckelshaus, ruggles, russel's, russell's, rychlik