I’d forgotten about these - apparently they changed the name in the 70s to Fun Dip, but I was long over them by then.

It was simply flavoured powder (like in pixie sticks) that you’d lick off your wet fingers, or you scarfed the package. Typically both.

They may have been 2 cents each or 3 packs for 5 cents type of thing.

https://www.oldtimecandy.com/collections/walk-the-candy-aisle-lik-m-aid-fun-dip