Kindly refer to the following link(s):
Writing 'Ma Sha Allah la quwwata illa billah' on the building to ward off evil eye
Ruling on putting stickers on car (Alhamdulillah, Ma Sha Allah, Shahada)
Hanging a big stone with knots of black rope for good luck in homes & restaurants
Hanging ayahs (verses) of the Quran to ward off evil eye & envy