Vague objects

Few philosophers believe in vague objects. Vagueness, many say, stem from our language, our conceptual scheme, or our epistemic limitations. Attribution of vagueness to objects, they maintain, is committing the fallacy of verbalism or the fallacy of mistaking that the property of things have the property of the words that describe them. There are exceptions (David Lewis, Gareth Evans, and Roy Sorensen I believe) who believe in vague objects. But if quantum mechanics says particles can be vague why not all else that are often thought vague like mountains (or just about everything, both particulars and categories and natural kinds)?