I am always seeking new stationery designs, and this time I browsed in my bookbinding manual for ideas.
diameter - 10 cm
Thin cardboard for pastels clad in thin striped fabric, glued together with flour paste.
Two pages of yellow A4 paper cut into four 9x29,7cm stripes and glued together to one long stripe of paper of about 9x115cm. This was carefully folded after instructions to form the spiral.
The letter/spiral mini book is held together by a ribbon that is officially marketed as bookmarker.