Handmade Bulgarian Martenitsi. On the 1st of March Bulgarian people celebrate a traditional holiday called Baba Marta. It is related to welcoming the approaching spring. On that day, Bulgarians exchange, so called "Martenitsi" and tell each other, "Chestita Baba Marta!" (Happy Grandma Marta!). This custom is essentially to wish great health, good luck, and happiness to family and friends. The Martenitsa is made of twined red and white threads - woollen, silk, or cotton.