Trick or Treating

I need some ideas on what to do with my daughter for Halloween because her plans have changed twice now and she is quite upset. 

The first plan was for her, her sister, and her 2 friends to go trick or treating together. Her friend now has a party at their house which she was invited to but isn't going because it will be too overwhelming for her. Her sister is going to this.

The second plan was for her and her brother to go trick or treating together but now her brother is going with his school mates instead. 

I don't want her going out by herself, for obvious safety reasons. I honestly don't like trick or treating so don't want to go out. I know this seems selfish but at the same time, she doesn't want me with her anyway because she wants to go far and know I won't do that. 

She has no friends, apart from the 2 at the party, so if worst comes to worst, I will have to take her myself. 

Are there any ideas you have that we can do instead or which may help the situation we are currently in? 

Thanks