Sunstar rhymes with:
canstar, constar, genstar, minstar, acustar, aerostar, amstar, apstar, canstar, cellstar, constar, crestar, earthstar, eurostar, firstar, flagstar, genstar, globalstar, goldstar, incstar, lodestar, minstar, morningstar, navistar, navstar, norstar, northstar, oberstar, primestar, telstar, texstar, torstar, tristar, windstar, wordstar
Sunstar sounds like:
sanctuary, sangster, seamster, semester, sinister