Kappes rhymes with:
cap's, capps, caps, kaps, apps, cap's, capps, caps, chaps, claps, collapse, crapps, craps, elapse, flaps, gap's, gaps, japs, kaps, knapp's, lapps, laps, lapse, maps, naps, perhaps, raps, relapse, saps, schnapps, scraps, slaps, snaps, straps, taps, traps, wraps, yaps, zaps
Kappes sounds like:
kabuki, kafka, kafka's, kafkaesque, kaposi, kaposi's, kappus, kaps, keeps, keepsake, keepsakes, kepco, kevex, kickback, kickbacks, kiev's, kippes, kishbaugh, kobak, kobayashi, kobe's, kobes, kobs, kobus, kobza, koepke, koop's, koops, kopacz, kopas, kopec, kopecky, kopek, kopeks, kopischke, kopka, kopke, kopko, koppes, kops, kovac, kovach, kovach's, kovacic, kovacich, kovacik, kovack, kovacs, kovaks, kovich, kubacki, kubas, kubes, kubiak, kubic, kubica, kubicek, kubick, kubicki, kubik, kubis, kubisiak, kupek, kupiec, kupka