Cut two square templates from paper, measuring 12 centimetres by 12 centimetres and 10 centimetres by 10 centimetres.
Cut a large square of felt using the template, and a smaller square cut with pinking shears to get a zigzag edge.
On the large square, place the ruler from corner to corner and mark five centimetres up from the edge with a pen. Repeat for each corner and snip up to this point. Repeat for the smaller square but snip four centimetres up, again using pinking shears.
Place the smaller square on top of the bigger square (pen side facing down, so any marks are hidden). Ensure the small square is right in the centre. Place a blob of glue in the middle. Take one side of each of the snipped corners, fold in and glue down.
Glue the button and stick in the centre of the windmill.
Cut a small piece of felt (about three centimetres by two centimetres) in the same colour as the inside pinwheel.
Cut three lengths of ribbon roughly the same size as half your dowel’s length.
Place a blob of glue on the back of the pinwheel and stick on the end of the dowel and ribbons. Glue the piece of felt and place over the top to cover the ends of the ribbon and secure the dowel.