Special's rhymes with:
specials, specials, specials, beneficial's, bushels, commercial's, commercials, credentials, differentials, facials, ficials, financial's, financials, herschel's, infomercial's, infomercials, initials, marshal's, marshall's, marshals, martials, official's, officials, officials', specials
Special's sounds like:
sophocles, spacewalk, spacewalks, specialize, specializes, specials, speechless, spychalski, spyglass