Couldn't tell you. Blindbags are notoriously difficult to find. I just managed to find the wave 1 blindbags for the first time at a local Walmart a few weeks ago, and this is like wave 5 stuff. I promptly used my amazing telepathic powers to buy out the entire Mane 6, ensuring that no starry eyed 5 year old girl would have even the slimmest possibility of finding her favorite pony from the show in her magical mystery bag. Welcome to life kids, a long series of disappointments scattered with opportunities to use superior knowledge to grant those disappointments to others.
I'm personally adding this wave of blindbags on to the Wave 3 set (Big Macintosh and Blues!) and the EPIC full size figure Brony Box as things to make my wife search high and low for while I'm in Korea. I'm only slightly ashamed that I am more concerned that I will not be able to take charge of the hunt myself and ensure it's completion than I am of being away from my family for a couple years.