Polecats rhymes with:
copycats, pussycats, thundercats, wildcats, acrobats, aerostat's, aerostats, aristocrats, badavatz, brickbats, bureaucrats, caveats, copycats, coseratz, democrat's, democrats, democrats', diplomat's, diplomats, diplomats', doormats, fiat's, formats, habitat's, habitats, laundromats, plutocrats, pussycats, rosenblatts, technocrats, thermostats, thundercats, wildcats, wombats, ziggurats
Polecats sounds like:
palisades, placetas, placid's, plastic, plastics, plisetskaya, populists, publicists