Megatons rhymes with:
anyone's, blowguns, branson's, everyone's, gentleman's, grandson's, grandsons, handguns, outguns, overruns, shotguns, someone's
Megatons sounds like:
macdonough, maktoums, mangosteens, mcadams, mcdonagh, mcdonough, mesdames, minnesotans, misquoting, misstating, moonstones, mustang, mustangs