Icahn's rhymes with:
michcon's, zircons, agans, ameron's, balfanz, chlorofluorocarbons, electrons, enron's, exxon's, freons, futons, hermanns, interferons, invitron's, johanns, leon's, michcon's, milacron's, negatrons, neurons, nissan's, nissans, ormiston's, pobanz, python's, raytheon's, revlon's, tampons, textron's, zircons
Icahn's sounds like:
icing, icons, ignace, ignacio, ignacio's, ignasiak, igneous, ignominious, iguanas, ijames, isensee, isms, isogenic, issing, issuance, issuances, issuing, izansky, izansky's