or you could look at it the OTHER way. lots of churches do a hallelujah night/ trunk or treat.
safe place for the kids to have fun, get candy and evangelise. invite your children’s schoolmates/ neighborhood kids.
Or sit out on your porch and pass out tracts, or bible verses attached to candy.
the best way to evangelise is to go where God is needed most. God didn’t give the great commission saying, “hang out in church and hope the sinners come to you” he said “go into all the world preaching the gospel.”
One of our neighbors hands out Chick tracts for Halloween. His house is not popular.