Flatten each coffee filter and decorate it with watercolor paint or markers. Use soft, bright shades like pink, blue, green, yellow, and purple all work beautifully.
Mist each one lightly with water to blend the colors, then let them dry completely.
Write or stick numbers 1 through 24 on the front of each coffee filter.
Place a small treat or note in the center of each filter, then gently gather the edges and twist the top closed. Secure with colorful yarn or ribbon.
Tie each pouch to a branch or dowel in rows, letting them hang at different lengths for a playful look.
Hang your advent calendar on the wall or door with twine. Each day, untie one pouch to reveal a new surprise, an easy, heartwarming way to count down to Christmas.