1960s look for a ball

[chobochobo]

I've been invited to attend an event next monday evening. It's a fund-raiser for the charity work done by MacDonalds, and there is a 1960s theme. I'm not one to dress up (I'm not going as Austin Powers), but wondering if there are any suggestions for a fairly smart yet subtle 1960s look? I was thinking about a Beatles type look but lack the suit and narrow ties

 

[mack11211]

Do you want to do early Beatles or late Beatles?

If you want to do early sixties on the cheap, then get a narrow dark tie and narrow black trousers. And a close fitting black cardigan. A white shirt with small points would be good too, but if you have the narrow tie against the white shirt people will see the tie first.