Vacation Bible School was once billed as an outreach event. And indeed it was at one time. Unfortunately, today it is often merely an event for our own children. So, how do we make VBS more evangelistic.

1. Pray for this event, that God will send seekers the church's way. Evangelism does not happen without God!
2. Give Members Invite Flyers to Hand out to their Unchurched Family Members, Neighbors, and Friends. 
3. Send out a Flyer to the church's visitor mailing list (a list of all visitors who have come to the church for worship or for an event), local pre-school the church may have a partnership with, other children's community groups that members might have a connection with (boy scouts, etc.)
4. Have a final VBS event night where parents come and watch a VBS video (of course they will be looking for their kids), share a meal or desert, and have members mill about and meet the visitors/guests.
5. Have something to drop off at the homes of those who visited that they will want to receive. For instance, take a picture of each child in his or her VBS T-Shirt, by a VBS set piece during VBS. Then, print these pictures and deliver them to family's home, along with a church brochure. Thank the family for coming, ask them if they have any prayer requests, and make a light invitation to worship. Also, create a follow-up team to send email, Facebook messages, and texts out to those who have attended, thanking them for coming, asking if they have questions, inviting to worship, telling of future children's ministry events, etc.
6. Have a follow-up event for children or an event that would be of interest to their parents (such as a parenting or child safety seminar). Invite those who came to VBS to come.
7. At all of these interaction points, have naturally friendly and evangelistic people at these events who are free to roam around the foyer and make connections with people, get contact information, and personally follow-up with an area of interest and need.

Let me give you a vivid example of how this works. Today I met a woman named Jenny in the foyer when she was waiting to pick up her kids from VBS. She said that she had recently moved here. I asked if it was for her job, and she said, It was because of divorce.

Immediately I felt that this was a "God moment," that God had deliberately brought the two of us together right then. Why? Two of our new members, Shannon and Jennifer, have been talking about having more ministries for single mothers and those going through a divorce. I am working to help facilitate/explore this.