Silicones rhymes with:
airfones, allophones, backbones, baritones, blackstone's, bridgestone's, businessphones, chaperones, cheekbones, cherrystones, cobblestones, cornerstones, crossbones, daimones, earphones, firestone's, flagstones, folkstone's, gallstones, gemstones, gladstones, gravestones, hailstones, halftones, headphones, headstones, homophones, hormones, keystone's, keystones, limestones, livingstone's, madstones, megaphones, microphones, milestones, moonstones, overtones, pheromones, redstone's, reflectone's, rhinestones, saxophones, telephone's, telephones, tombstones, undertones, waterstone's, wellstone's, yellowstone's
Silicones sounds like:
salesman's, salesmen's, siliconix, slackening, slackens, slackness, slashing, slicing, slocan's, slogans, slogging, sloshing, slouching, slugging, sluggishness, sluicing, socializing, squelching, sulking