Try Yan 'an Hospital to Dongjiawan (near the intersection of Huancheng East Road and Dongfeng East Road, next to Wal-Mart). There's a garden where you can sell those big guys. Maybe there is something you want ...

By the way, there is also a big jar seller on Dianchi Road, and there are all kinds of big vases. You can see A 1, 44, 73, on the edge of the city. ...