Stampfli rhymes with:
awfully, beautifully, briefly, chiefly, colorfully, diffley, gruffly, hafley, heffley, hefley, medfly, muffley, peffley, powerfully, roughly, safely, safley, schlafly, stiffly, wolfley
Stampfli sounds like:
stampley, stanfill, stanphill, stempel, stemple, stumble, sustainable