You can still buy Yoo Hoo. I think it’s based on an egg cream
Every now and then Yoohoo shows up up in here... I don't know why, but whenever it shows up, I always buy some.
Another of those is Hileman's Old Style beer - A staple blue collar beer back east (or should I say midwest, Chicago), but exceedingly rare out here. I know it sounds dumb to get all excited about such a mundane beer, but I have many a good time to recall drinking Hileman's with my uncles and my friends on trips back east. Something like baseball on the radio - weirdly attractive to me since it was so common back there, and absolutely absent out here. So it positively reeks with nostalgia for me - Even more perhaps than actually attending a game, as the radio was the common form.
As to the egg cream... I have naught to compare it to except maybe a proper malted, as I have never had the pleasure...