Faience is one of the most common compositional materials for ancient Egyptian artefacts, with its use widespread particularly in small objects, such as amulets and statuettes. Turquoise/blue was a very popular colour, used as a substitute for more precious stones, such as lapis lazuli. Similarly, red faience could serve as a substitute for carnelian.
To learn more about the use of faience in Ancient Egypt please see our relevant blog post: What is Egyptian Faience?