Garstka rhymes with:
kostka, pestka, butka, chykatka, ditka, dutka, kamchatka, kosmatka, kostka, latka, nitka, peroutka, pestka, sabatka, sitka, sobotka, winnetka
Garstka sounds like:
garajda's, garcetti's, georgiades, georgiadis, gershowitz, gorazde's, gorgets