如何制作安全且环保的鸟窝材料?

材料：

• 100% cotton batting
• 100% cotton yarn
• 1 spool of embroidery floss
• Scissors
• Sewing needle
• Sewing machine (optional)

步骤：

1. Cut the batting and yarn:

   • Cut the batting into 12 pieces, each measuring 12 x 12 inches.
   • Cut the yarn into 12 pieces, each measuring 24 inches long.

2. Assemble the bird nest:

   • Lay out the batting pieces on a flat surface.
   • Starting with the center piece, arrange the batting pieces around the yarn pieces, forming a circle.
   • Secure the batting in place with a few stitches.

3. Attach the yarn:

   • Thread the embroidery floss through the sewing needle.
   • Tie a knot at the end of the floss.
   • Pass the knot through the center of the batting circle.
   • Tie a knot on the other end of the floss.

4. Attach the yarn to the bird nest:

   • Push the needle through the center of the batting circle.
   • Pull the floss tight to secure the nest to the batting.

5. Finishing touches:

   • Trim the excess yarn.
   • Add any desired embellishments, such as beads or feathers.

注意事项：

• Use a fabric that is fire-resistant and breathable.
• Wash the bird nest by hand in cold water.
• Do not iron the bird nest.
• Hang the bird nest in a safe and dry place.