So creative!

Clean the cookie sheet thoroughly to remove any grease or residue.

Use a ruler and marker to lightly sketch your desired pattern on the cookie sheet. Geometric designs or floral motifs work well.

Put on protective gloves to protect your hands.

Carefully punch holes along the marked pattern using the knitting needle. Apply steady pressure and ensure the holes are evenly spaced.

Once the pattern is complete, use sandpaper to smooth any rough edges around the holes.

If desired, spray paint the cookie sheet in a color that matches your decor. Allow it to dry completely.

To use as a luminary, place LED tea light candles behind the cookie sheet to illuminate the pattern.

Hang or display your finished piece in a location where it can be admired and enjoyed.

For a more colorful variation, consider using different shades of spray paint to create a gradient effect on the cookie sheet. You can also experiment with different patterns, such as abstract designs or personalized monograms, to make the piece truly unique. If you prefer a more rustic look, leave the cookie sheet unpainted and embrace its natural patina. For added texture, try using a hammer and nail instead of a knitting needle to create larger holes or dents. This DIY can also be adapted to create outdoor garden lights by using weather-resistant materials.