One of the catchiest commercial jingles around was the above refrain. Unfortunately, I wasn't able to locate a picture. But I was able to dig up a little info on it.
Milk Shake was a Borden's product. There seemed to be a brief craze in the mid-to-late 60's of selling canned milk shakes. A rival brand was Great Shakes, which also had a killer jingle.
Anyhow, this song stuck in my head as a kid, and I can recall most of the lyrics:
Shake open and pour, a milk shake!
Shake open and pour, a milk shake!
(Something something), in a can
(Something else), it's crazy man!
No (something something)'s better than
At this point a kid would screw up his line and blurt out
er, shake open and pour!
Help me with the missing lyrics, would you? And if someone can spot a graphic, let me know.