Nobec's rhymes with:
beck's, becks, quebec's, aix, atx, beck's, becks, blech's, caltex, checks, cmx, convex, czechs, dec's, decks, dex, eckes, ex, execs, fedex, flecks, flex, govpx, heck's, hex, jex, lex, meckes, megaplex, mex, necks, nex, onex, peck's, perplex, plex, quebec's, rex, sex, sheck's, shek's, specks, specs, tech's, techs, teck's, tex, treks, triplex, vex, wall-tex, wrecks, x, x.
Nobec's sounds like:
nabisco, nabisco's, nabobs, nafco, namibia's, napco, naps, navajo, navajos, navas, navickas, navies, navis, navy's, neaves, nephew's, nephews, neves, nevis, nevius, nibs, nieves, nimbus, nips, nipsco, nobec, nobis, nobuaki, nobuyuki, noffke, nova's, novacek, novack, novak, novak's, novakowski, novas, novice, novices, novick, novicki, novo's, nymphs