* The 'Blab' mentioned below refers to The Model Horse Blab, a popular model horse community. *
On August 03, 2006, I spotted four mysterious mare and foal sets at my local Target in the Southwestern US. I didn't know if they were special runs, regular runs, or some sort of fluke release (a girl can dream, right?), but I did know I would be buying them all that day.
I have since found a Blab post on July 27, 2006 from an East Coast member mentioning these sets, so people were finding them on the shelves at least a week earlier than I did.
It is well that I purchased the models when I did because two of the four sets saw some fairly major changes very soon after their release.