Measure the front and back cover of the notebook using a ruler.
Cut paper bag pieces that are approximately 1-inch larger on both sides than your notebook.
Crumple both pieces of paper bag in your hands, creating wrinkles. Then, smooth out the paper and repeat. You want to create lots of wrinkles without tearing the paper.
Paint both pieces of paper with the darker brown. Completely cover and let dry.
Place some lighter brown paint down on a paper plate and dip your sponge lightly. Remove some of the paint. Run the sponge gently over the top of the paper, creating contrast. Do with both pieces of paper and let dry.
Apply decoupage medium to the front cover of the book. Smooth one of the paper bag sheets down onto the cover and smooth, folding down over the edges. Let dry for 15 to 20 minutes. Repeat on the back cover.
Add a topcoat of decoupage medium to the top of the front cover. Let dry and repeat on the back cover.
Cut two pieces of scrapbook paper that fit the inside of the front and back covers, using the ruler and scissors or craft knife and mat.
Cut two equal lengths of ribbon around 9 inches each. Glue one piece to the inside of the front cover and one piece to the inside back cover. Let dry.
Apply decoupage medium to the inside cover and smooth one of the pieces of scrapbook paper down on top. Let dry. Repeat on the inside back cover. Let dry 24 hours before using.