If you've been to any My Little Pony conventions in the east or midwest of the US, you've probably seen a Scootaloo fursuit costume. That's me! I made it and I love using it all the time.
I made a video about making it and my experiences performing it, you can watch it here:
I also present a panel at conventions also all about how to make pony fursuits. You can get the Powerpoint file here.