1. Open the napkin and put it with the wrong facing outwards on the table.
2. Fold the lower edge to the upper one to create a top opening bag.
3. Fold the left top corner to the centre of the bottom.
4. After that fold the right bottom corner to the centre of the top to get a rhombus.
5. Turn the napkin 45 degree in clock-wise direction and than turn it up so that the triangles are on the backside.
6. Fold the rhombus in half to the top. The points of the triangles should overlap the bottom.
7. Fold the upper edge of the right hand triangle towards you.
8. Turn up the napkin and stick one corner in the other. Finished is your bishop's cap.
