Jars rhymes with:
amar's, ares, azhar's, baars, babar's, bar's, barr's, barres, barrs, bars, barz, bazaars, car's, carr's, cars, cars', cigars, czar's, czars, dzhokhar's, far's, gars, guitars, hekmatyar's, jabar's, kahr's, kahrs, lamar's, lars, marrs, mars, mars', marz, minicars, myanmar's, nars, npr's, par's, pars, r's, r.'s, r.s, renoirs, sars, scars, shahar's, sitars, staar's, star's, starr's, starrs, stars, stars', superstars, tokars, vars
Jars sounds like:
jaegers, jagger's, jaggers, jaguar's, jaguars, jarash, jarchow, jarecki, jares, jaros, jarosz, jaroszewski, jauregui, jaurequi, jaworowski, jaworski, jeers, jerez, jericho, jerk, jerks, jerky, jerrico, jerris, jerry's, jersey, jersey's, jerseys, jerusha, jerzak, jerzy, jezierski, jeziorski, jirak, jirga, jirik, jirsa, joerg, joers, joggers, jokers, jorge, joser's, jowers, juarez, jura's, juras, jurassic, jurczak, jurczyk, jurek, jurewicz, jurica, jurich, juries, juries', juris, jurkiewicz, jurkowski, juror's, jurors, jurors', jurs, jury's