Orlando -- Orlando's Lake Buena Vista Factory Stores outlet center is turning 20, and the 50-store mall invites the community to a celebration on Saturday, October 22. Gift cards and other prizes worth a total of $8,000 will be given away hourly starting at 11:30 a.m. Plus, a DJ, a magician, a stilt walker and other entertainers will be performing. Some stores are having giveaways and sales of their own.