如何制作烟弹的包装袋?

材料：

• 1 rolls 12" x 18" sturdy cardboard
• 1 roll 1" x 1" elastic bands
• Scissors
• Ruler

步骤：

1. Fold the cardboard:

   • Lay the cardboard flat.
   • Fold the top edges down to the center crease.
   • Fold the sides down to meet the center crease.
   • Fold the bottom edges down to the center crease.

2. Fold the elastic bands:

   • Cut 4 pieces of elastic band, each 12" long.

3. Assemble the bag:

   • Lay the folded cardboard flat.
   • Place the elastic bands across the center crease, about 2" apart.
   • Fold the top edges down over the bands.
   • Fold the bottom edges down to meet the top edges.

4. Secure the bag:

   • Use a staple or a rubber band to secure the bag closed.

5. Decorate (optional):

   • You can decorate the bag with paint, markers, or stickers.

6. Cut the edges:

   • Cut off any excess cardboard around the edges.

提示：

• Use a sturdy cardboard that can withstand the weight of the fireworks.
• Make sure the elastic bands are long enough to wrap around the circumference of the cardboard.
• Test the bag before you fill it with fireworks.