In this studio and laboratory research study, the suitability of several glazes for use on the earthenware clays used by local potters in the internal provinces of Oman was investigated. The aim was to develop suitable, economic glazes from local materials for use with Omani earthenware clays that could form an adequate adhesive bond with the clay surface and be used in ceramics decoration in local educational institutions. In particular, the experiments in this study mainly evaluated the use of Ferro Frit 3110 in different glazing recipes. It is a calcium- and sodium-rich frit with oxides that are stable and predictable, and it is more dependable in chemical composition than other raw materials. The final results can help to reduce the cost of importing ready-made expensive glazes from overseas for use in ceramics decoration in Omani higher educational institutions.