Comecon rhymes with:
catchacan, emoticon, farrakhan, planecon, alarcon, catchacan, digicon, econ, emoticon, ethicon, farrakhan, helicon, lexicon, logicon, midcon, nikon, oerlikon, planecon, polysilicon, semicon, technicon, walk-on, yukon
Comecon sounds like:
cancan, cancienne, cancino, cancom, cancun, cangemi, cangiano, canson, canzano, chang-hsin, changchun, chiengmai, cinnaminson, cinnamonson, cinquemani, coenzyme, commision, commission, communism, concannon, concession, concussion, conjoin, conkin, conshohocken, consign, consume, cookingham, cunningham, cyanazine, cynicism