What is everyone using for a cup holder in their classic?

Stephen Mulkey said
That's a great story but, sweetie next to you on the seat didn't beat your *** for spilling your milkshake on her? Your holding back...

I don't think I got a drop on the passenger. It was a perfect "drop" upside down LOL Bear in mind this was 1966-1967 that was a HELL of a long time ago