Here's how it works
At the beginning, Coloured paper has to be cut to the size 20 x 20 cm. You need 24 squares, which are then turned into small bags. Fix them with glue or optionally double-sided Adhesive tape . Then use the edding calligraphy-Marker label as desired.
The numbers look best written out as a numerical word. Perforate the bags and attach the Ribbon as a loop. Now fill the bag with Silk paper - you can hide the little surprises in it. For the hanging of the Advent calendar there are different possibilities.
For example, a board with hooks or a pine garland to which the bags can be attached can be used as in the picture