We went January 19-29 and couldn't get any make your own treats on the DDP.
There were marshmallows on a straw and a pretzel rod with one topping and one drizzle in the case that were a snack credit.
Goofy's seems to change hourly (sometimes even CM to CM as previously stated), so your best bet is to ask the CMs at Goofy's what is a snack credit when you want to order. (Though we had one CM tell us that something was a snack credit, and when we went to pay a different cashier it wasn't a snack credit anymore.
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