for those coming to the party, here's some examples of 60's fashion....a simple search on youtube will give you more ideas....
Note: That's a genuine 60's fella in the picture, don't you know....and to think, Xmas and Parco have been around for at least 50 years!!! The gent pictured sure looks sharp though. (He bears a strong resemblance to the one Brian B., perhaps a grandpappy or great uncle...who knows??!!)
yes, 50s style is acceptable too because its cool and it predates the 60s.....but why do you ask? the party's over, and you had no intention of attending!!!