Now that I'm home and can use a real computer rather than just my phone, here is updated information about my experience trick or treating during the first
MNSSHP.
TRICK OR TREAT LOCATIONS
1) Main Street USA near Tony’s Town Square Restaurant
I missed this one. I arrived about 6:30; people who arrived later were directed here by a cast member and got a “starter” packet containing several pieces of candy.
2) Next to the Jungle Cruise
Outside
3) Next to Pirates of the Caribbean in Adventureland
Outside but covered if I recall correctly
4) Country Bears Jamboree in Frontierland
Inside
5) Next to Splash Mountain in Frontierland
I missed this one (didn't want to cross over as parade was about to start)
6) Next to where you get the raft for Tom Sawyer Island in Frontierland
I missed this one (didn't want to cross over as parade was about to start). I hear they had Gogo squeeze pouches.
7) Columbia Harbour House in Liberty Square
Inside, but you go in through a side entrance. It is wet there before the fireworks; go later or skip it if you want to stay dry.
8) Mickey’s Philharmagic in Fantasyland
Inside. You get candy at two places.
9) Pinocchio Village Haus in Fantasyland
Inside
10) Near Under the Sea in Fantasyland
I missed this one
11) Near the Barnstormer in Fantasyland
I missed this one
12) Near Tomorrowland Speedway in Tomorrowland
I missed this one
13) Near Carousel of Progress in Tomorrowland
Outside
14) Monster’s Inc. in Tomorrowland
Inside. I got candy at two places the first time I went, at three places the second time I went.
FINDING THE CANDY
Note that some trick-or-treat locations are marked by a large orange inflatable thing. But some guests wear orange shirts, so you might think you see one in the distance when it’s only a guest. Some are only marked by cast members holding up paddles.
CARRYING THE CANDY
Bring your own tote bag or reusable grocery bag. I hit 9 of the 14 locations (plus went back to one) and it would have been more candy than could fit in the tiny bag they give out – and I missed two of the locations where you receive large items.
Hefty makes 2.5 gallon jumbo sliding bags (ziploc bags but "ziploc" is a competitor's brand). I suggest buying a box at your local grocery store. Take one bag and put it inside your tote bag or reusable grocery bag, to keep the candy dry in case you get wet. I went on Pirates and got wet.
TYPES OF CHOCOLATE CANDY
Dove Milk Chocolate: 7
Malteasers: 2
M&M Plain: 7
M&M Caramel: 3
M&M Peanut Butter: 1
Milky Way Minis: 3
Snickers fun size: 2
Snickers Mini: 6
Snickers Crisper: 6
Three Musketeers Fun Size: 4
Twix Minis: 3
TYPES OF NON-CHOCOLATE TREATS
Gogo Squeeze Pouches - I did not get these, but other people did
Lifesavers Gummies: 7
Lifesavers Big Ring Gummies: 2
Skittles Originals: 11
Skittles Sour: 3
Skittles Wild Berry: 3
Starburst FaveReds: 9
Starburst Original: 9
TRANSPORTING THE CANDY
Remember that car trunks get hot, and it’s a long ride to the airport from a Disney hotel. When your vacation is over, keep your candy in the car with you when you go to the airport; do not put it in a suitcase which will go in the trunk of the car. If you forget, the Dove bars will melt the most and will be hard to unwrap.
GETTING CANDY THROUGH AIRPORT SECURITY
I started a thread on this on the transportation board, and haven't checked it yet. I had Pre-check, and we were not told to take food items out of our carry-on bags. I had no issues with the candy. However, I did not take all of it home. I gave most of it to a local friend. I only took home the chocolate candy - and not the Malteasers, or the M&Ms.