We went a few years ago and my daughters have been asking to go again since so we will be going again next year. Here is what we did.
We all dressed in costumes. There are characters to take your pictures with that are also wearing costumes. For example Chip and Dale were in ghost sheets.
There is a special halloween/villian parade. It was really different from the regular parade. And the characters made a big deal out of the girls in their costumes.
We ate at the Liberty Tree and they had the characters in like bat masks over thier eyes etc. costumes of their times. And the servers were in haunted mansion clothes.
There are a few spots to trick or treat and there are games for the kids to play for little penny type prizes.
There is a costume parade for the kids in costumes where character and the kids hold a rope and walk and then they had dancing and the characters were there.
You can get a free family picture.
Of course there are rides too, we walked on space mountain.
We had a great time.
As far as I know there haven't been any pins specifice to
MNSSHP yet but who knows what this year will bring.