A couple of years ago, my daughter had a make-your-own marshmallow made...she picked almost every topping, and after it was done, we weighed it at the counter and it was 2.4 lbs!!!! It was incredible...and it took her all week to eat it. That was back when it was included in the DDP and the lady who was making it was extra generous with the toppings...we bought one last year and the lady making it was extremely "cheap" with the toppings. We still love Goofy's though, and will probably buy the treats OOP.
We got the rice krispie treat the last time and it was such an amazing use of the snack credit! We are so doing it anway though. Definitely one of my new favorite things to do at Downtown Disney
