Ponies are basically non-existent, you can only find them online. Even Toys'r'Us down here doesn't have anything anymore. They used to sell a few G3 and Ponyville 3 years ago, but horribly expensive, and now nothing.
The only time I ever came across a G4 in person was in Dalian in a jewelry shopping mall, they used them to make these glittery iPhone case things. I asked about the price, but they wanted like 20 USD for one MOC, so I let it go.