Halloween Bags of Hope available from UCB; here.
The Good Book Company have some excellent resources for Halloween; here.
Many churches hold a Light Party on the same evening for their own church children and their friends.
Here's something else that one of our churches has done:
Greet and Treat
In the past a team from St Lukes Church, Endon have tried something different for All Hallows Eve. Two groups from church went out onto the streets greeting young people who are Trick and Treating. Those greeted were given a Christian-themed goodie bag with sweets and a small Christian gift. They were wished a Happy All Saints Eve! The young people were grateful and now greeted them as 'Its the lot from church'! This year we gave out 60 bags. They also opened church up as a Safe Haven and the young people could drop in for a cup of hot chocolate. The bags are available from the Potteries Christian Bookshop. (More on them here)