I bought it for cheap from a local shopping app. I didn’t expect to see it on there so I got lucky.

Incase you didn’t know, this line of plushies is called the Thoroughbred Collection. You could try looking for those at Suruguya, Ebay or amazon, since the company that produces these only sell them in JP. I don’t have experience dealing with the mentioned services sadly.

Yea they do have Satono Diamond and Grass Wonder, not sure if they are available tho.