K-mart's rhymes with:
mart's, marts, martz, smarts, art's, arts, artz, bart's, barts, bartz, carts, charts, dart's, darts, departs, descartes's, hart's, harts, hartz, heart's, hearts, imparts, kartes, mart's, marts, martz, part's, parts, parts', schartz, smarts, spartz, starts, tarts, upstarts