Here's what rhymes with frustules.
pustules Words that almost rhyme with frustules
muscles customs uncles mussels ruffles couples struggles troubles bubbles buttons chapels doubles onions puzzles rushes tunnels jungles knuckles ovens shovels buckles funnels hovels puddles sultans touches bundles cousins dozens summons eruptions clutches uplands blushes muffins nuptials stumbles functions hundreds discusses reductions junctions bunches corruptions disruptions emulsions sponges dungeons pumpkins instructions assumptions discussions husbands productions deductions obstructions pretences compasses constructions convulsions injunctions interruptions repercussions dysfunctions presumptions introductions conjunctions reproductions reconstructions remonstrances