▁same ▁patch ▁of ▁skin ▁every ▁night ). ▁After ▁applying ▁the ▁gre ase p aint ▁must ache , ▁a ▁quick ▁glance ▁in ▁the ▁mirror ▁revealed ▁his ▁natural ▁hair ▁e y eb rows ▁were ▁too ▁undert oned ▁and ▁did ▁not ▁match ▁the ▁rest ▁of ▁his ▁face , ▁so ▁Marx ▁added ▁the ▁gre ase p aint ▁to ▁his ▁e y eb rows ▁and ▁head ed ▁for ▁the ▁stage . ▁The ▁abs urd ity ▁of ▁the ▁gre ase p aint ▁was ▁never ▁discussed ▁on - screen , ▁but ▁in ▁a ▁famous ▁scene ▁in ▁D uck ▁S oup , ▁where ▁both ▁Ch icol ini ▁( Ch ico ) ▁and ▁P ink y ▁( Har po ) ▁dis gu ise ▁themselves ▁as ▁Gr ou cho , ▁they ▁are ▁briefly ▁seen ▁applying ▁the ▁gre ase p aint , ▁implicitly ▁answering ▁any ▁question ▁a ▁vie wer ▁might ▁have ▁had ▁about ▁where ▁he ▁got ▁his ▁must ache ▁and ▁e y eb rows . ▁ ▁Marx ▁was ▁asked ▁to ▁apply ▁the ▁gre ase p aint ▁must ache ▁once ▁more ▁for ▁You ▁Bet ▁Your ▁Life ▁when ▁it ▁came ▁to ▁television , ▁but ▁he ▁refused , ▁opt ing ▁instead ▁to ▁grow ▁a ▁real ▁one , ▁which ▁he ▁wore ▁for ▁the ▁rest ▁of ▁his ▁life . ▁By ▁this ▁time , ▁his ▁eyes ight ▁had ▁weak ened ▁enough ▁for ▁him ▁to ▁actually ▁need ▁correct ive ▁l enses ; ▁before ▁then , ▁his ▁e y eg lass es ▁had ▁merely ▁been ▁a ▁stage ▁prop . ▁He ▁deb uted ▁this ▁new , ▁and ▁now ▁much - older , ▁appearance