Taobao is a Chinese website that has had many ponies before they've been released.
Sometimes a search on "hasbro my little pony" will turn them up. But a bunch of other stuff turns up too.
To order from TaoBao, you need an agent because TaoBao sellers don't ship outside of China.
If you do a search on "Taobao" here at the Arena, there's a lot of info on TaoBao.
Good luck!