This research dealt with how to take advantage of the decorative units in the Mizab of the Kaaba, in the province of Makkah Al-Mukarramah, in order to obtain multiple innovative designs for applied art with a contemporary plastic artistic vision to design a memorial pen for the guests of the Allah. In view of the Mizab of the Kaaba containing a lot of plant and engineering decoration. To reach the objectives of the research, the researchers adopted a descriptive and empirical approach to analysed the decorative units in the Mizab of the Kaaba and chose what is best suited to the design and its application. The results showed that the first, second and third designs are considered innovative designs of plant motifs for the Mizab of the Kaaba. Also it showed the first design of three pens inspired by the decorations of the Mizab of the Holy Kaaba. The researchers recommend conducting more researches in this topic by considering other aspect of Mizab of Kaaba and its plant motifs.