Here's what rhymes with ay.
ae they may day way say pay re lay j array bay gay k ray che hay nay weigh fay fe yea dey hey ley rei sei whey jay kc lei payee rea rj tae wei bey neigh cay fey roue shay away play stay clay essay gray grey obey pray okay prey sway tray fray oj slay allay ij ok sleigh bj bk drei fj tj tre zwei bray dray flay brae moray trey aurae spay aweigh today delay survey decay spray ballet cafe repay stray valet bouquet fillet passe saute belay filet inveigh splay nisei purvey sachet toupee hooray noway hurray reweigh copay anyway convey betray dismay halfway astray attache cliche defray disarray overlay cabaret dossier gangway naturae puree replay alleyway crochet croquet parquet risque soiree souffle airplay byplay prepay sorbet overpay sickbay urethrae briquet layaway outplay outstay umbrae display everyday holiday portray runaway underway disobey faraway lamellae papillae waterway emigre francais matinee toothache underlay getaway lingerie wordplay workaday caraway giveaway hideaway ricochet throwaway patellae pleurae resurvey soubriquet stowaway flyaway overplay overstay caesurae medullae underpay bobsleigh misplay tearaway respray yesterday interplay vertebrae naivete passageway protege sequelae microarray nebulae societe breakaway fistulae maxillae sobriquet carriageway castaway fibulae stingray takeaway underplay macrame roundelay uvulae copulae foldaway walkaway formulae scapulae straightaway cabriolet cybercafe penumbrae communique salmonellae tarantulae trabeculae companionway caravanserais