|Children's Museum of Manhattan|
Target has sponsored events in your near by city. I searched NYC area and found a few free events for the kids. Look here
for events in your area.
If you live near New York City you can check out Children's Museum of Manhattan on the first Friday of every month in the evening. I have never been there but free sounds good to me.
Have you been to any free Target events in your area? Let me know in the comments, I'd love to hear if you enjoyed it.