Desert Party Report
Moral Of This Story: if you're wanting to take your items to the garden bring your own To Go containers or just bring your plate... And have a great time!
We were there Saturday, October 6th on a non-
MNSSHP night during the Columbus Day 3-day weekend. Touring plans had rated the day/park an 8 out of 10. I had booked the pre-fireworks party several weeks in advance, then 2-3 weeks before our trip suddenly decided I'd rather do the After Fireworks party but I never found availability for 3 (neither did our
travel agent.) I'm betting both parties were sold out.
We wanted to be against the back so DD8 could stand on the curb at the fence (thanks all for that great suggestion!) I wanted to check in, get some desserts in a to go container, and head right over to grab our spot in the garden and then enjoy the desserts there. Some had reported getting to go containers when they asked for them, so I took a gamble and didn't bring any of my own containers... I lost that gamble. I asked the CM who seated us if they had any, he checked, and said they were out. So we got what we wanted on the regular plates, walked our plates over to the garden, picked our spot, and sat down. After eating I threw away the trash and brought the plates back over to the Terrace and a CM took it. So it worked out fine, but I would recommend that you bring your own container.
Desserts: I was looking forward to trying the toffee thing several of you mentioned but it wasn't there. The s'mores on a stick were cute. DD8 thought the sparkling apple cider in a plastic champagne flute was quite fancy and after she drank it we let her pour water in it several times so she could drink it from there.

She made a couple of friends in the garden and for probably a good hour there was plenty of room for them to move all about the garden without disturbing anyone.
Garden crowd level: We got to the garden by about 7:45 and it was nearly empty - there were maybe 5-7 other people there besides us. By the time the fireworks started the garden was definitely full but it was nothing compared to the mass of humanity packed like sardines outside the garden. Most everyone in the garden still had room to sit on the ground until the fireworks started. I'd say 2/3 to 3/4 of the people stood up for the show but there was a swath of folks right in the middle that stayed sitting which helped my daughter to be able to see even farther down on the castle. (I don't think this usually happens, just happened to be true this time.)
We did this on our arrival day, and of course loved seeing HEA for the first time and I cried those happy Disney tears during the show.
Thank You Thank You again to everyone's suggestions and reports. Special Thanks to GADisneyDad for posting helpful pics and answering lots of questions!