Thick walled and heavy in weight are typical of what I tend to see here, many are quite large too. They are often bright and really cheerful and generally great value. Flat polished bases are not that unusual, more often there is a ground but unpolished pontil mark too.
Domestic producers must be tearing their hair out at the competition, where the Chinese products fall down is overall quality, especially in terms of attention to detail and somewhat generic design.