Here's what rhymes with pennywhistle.
whistle missile thistle fissile missal sisal epistle bristle gristle dismissal antimissile Words that almost rhyme with pennywhistle
civil chisel swivel riffle sizzle fizzle piffle initial official beneficial drizzle shrivel drivel sniffle grizzle frizzle skiffle judicial unofficial gingival uncivil semiofficial bellyful interstitial prejudicial nonofficial artificial superficial nonjudicial sacrificial nonprejudicial extrajudicial wiggle whittle little middle fiscal distal nickel pistol fiddle nipple pixel riddle ripple sickle wilful fickle vigil virile willful wistful chiral giggle nibble pickle quibble tickle tinsel tittle pistil wriggle diddle sibyl tipple chicle jiggle twiddle wimple dibble kibble miscall winkle niggle piddle simple single signal symbol crystal cheerful fearful brittle dismal sinful triple mingle acquittal blissful cripple fitful kindle nimble shingle tearful trickle twinkle wishful dwindle jingle lintel swindle thimble tingle tinkle wrinkle cymbal dimple dribble griddle spittle fistful hymnal pimple prickle stipple dingle mistral schnitzel skittle squiggle dirndl spindle ventricle lingual skillful minstrel pedicle abysmal belittle committal liminal scribble rekindle brimful brindle crinkle timbrel vendible skinful brimfull familial sprinkle intermingle transmittal commingle unskillful megacycle pumpernickel basinful provincial bilingual participle baptismal paroxysmal multilingual noncommittal periwinkle oversimple surcingle monolingual sublingual cataclysmal