Just cane across this. In March 2016, I was able to get anything under $6/7 (it was a specific value and I forget it). I have read reports since of ppl using it to get bags of mini chocolates (they even combined snack credits). We got a double scoop of ice cream in a chocolate-dipped waffle cone for 1 snack credit. It was gigantic.
Planning on going there again for our August trip

And this time, getting chocolates from the store too!!