What to bring to a party that starts with H?

Mexican parade.

Which city is the Halloween capital of the world?

Anoka, Minnesota
Anoka, Minnesota, calls itself the “Halloween Capital of the World,” as it is one of the first cities in the United States to put on a Halloween celebration that discourages people from playing tricks or causing trouble.

What was the most popular adult Halloween costume 2019?

Top 10 Halloween Costumes For Adults in 2019: