Parser combinators provide a parsing experience that balances flexibility and abstraction with writing parsers in a style that remains close to the grammar. Parser combinators can benefit from the design patterns and structure of an object-oriented world, however, and this paper showcases the implementation and implications of various design patterns tailored at parsers in an object-oriented and functional world. In particular, features of Scala, such as implicits and path-dependent types, along with general object-oriented design help make it easy to write and maintain such parsers.