How can I create a DIY liquid pen at home?

To create a DIY liquid pen at home, you will need a small container, water, food coloring or ink, a small brush or cotton swab, and a pen or marker. Fill the container with water and add a few drops of food coloring or ink to create the desired color. Use the brush or cotton swab to soak up the colored liquid and carefully transfer it into the pen or marker. Allow the pen to sit for a few minutes to absorb the liquid before using it.