Well,
The kids who showed up at our Carnival were Beauty from Beauty and the Beast, Spiderman, Peter Pan, Tinker Bell, a girl in a 1950's poodle skirt... lots of Batmen, Pilots, and Firemen. We didn't have a single skeleton, vampire, witch, etc.
But, yes, Jesus Christ IS real, which was the focus of what we taught, and yes, jackolaterns ARE fake, and they do NOT protect you from evil spirits, which is ALSO what we taught.
Now, if YOU want to put YOUR faith in a pumpkin face with a candle in it to scare away evil - I wish you luck, but as for me and my church - we'll put OURS in Christ, and continue to teach Children to put THEIRS in Christ.