Its almost the first Tuesday of the month, which means its time for the monthly mini model build event. Starting at 5:00 p.m. on October 4, 2011, stop by a participating U.S.

http://stores.lego.com/en-us/StoreEvents.aspx

The best part? Its free. The freebie is available while supplies last, and the event is open to children ages 6-14 only.