Wall-tex rhymes with:
caltex, caltex, tech's, techs, teck's, tex, 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, nobec's, onex, peck's, perplex, plex, quebec's, rex, sex, sheck's, shek's, specks, specs, tech's, techs, teck's, tex, treks, triplex, vex, wrecks, x, x.
Wall-tex sounds like:
waldeck, waldoch, waldock, wallets, walthose, walts, waltz, waltzes, wealths, weld's, welds, welltech, weltz, wields, wilde's, wildes, wilds, wildwoods, willets, willetts, willits, wilts, wiltse, wiltsey, wiltsie, wiltz, woltz