Actually, if you read some of first and second generations of Christian writers, there is a lot more to prohibit the wearing of any type of gold than there is for celebrating the day before All Saints Day.
How about you use it to spread the Gospel instead? Put a Snickers and a Bible tract out to anyone who comes to the door?
I remember one year taking my son trick or treating. We went up to a house that had a porchlight that was brightly blazing. On the door was a note that stated, "We are Christian, so do not observe Halloween." They could just as easily have turned off their lights the way most normal people do.
I don't put too much stock in what post-biblical writers had to say.
How about you use it to spread the Gospel instead? Put a Snickers and a Bible tract out to anyone who comes to the door?
Instead of encouraging the activities, I think more of an impact would be made by politely telling them that we don't observe Halloween for religious reasons.