Loved these things. My parents bought them when we went up to our weekend farm in Wisconsin (they got things backwards--most Minnesotans had lake cabins for weekend fun, my dad and mom decided to live on a lake and go up to work and sweat on a farm on the weekends...don't ask). We always got them at Ben Franklin in small-town Wisconsin, along with candy buttons (of which I know I consumed more paper than candy.)
We were discussing them on the Gen Xtinct Facebook page, and some people loved 'em, some thought they were a waste of candy, and others debate how to eat them...bite the head off the bottle and suck out the Kool-Aid like juice, or chew the whole thing up at once. I was a head-biter-offer.