Arkin's rhymes with:
harkin's, harkins, larkins, parkins, corkins, harkin's, harkins, larkins, parkins, sporkin's
Arkin's sounds like:
aerogenosa, arcanum's, arceneaux, arching, arciniega, arguing, arising, arizona's, arizonans, arkansas, arkansas', arkansas's, arousing, arrogance, arsenic, arsons, arzamas