Duct-tape together two cardboard tubes, paint green, and let dry. Wrap with green crepe-paper streamers; secure with double-stick tape.
Cut out leaves of various sizes from green cardstock; attach with hot glue. Cut 1/4"-wide strips of green cardstock and wind around a pencil to create curly tendrils; hot-glue to stalk.
Duct-tape pasta or cereal box shut, and cut hole in bottom just large enough to accommodate cardboard-tube stalk. Hot-glue box to top of stalk, inserting tube into box.
Wrap box in colored paper with rectangles cut from one edge to resemble a castle top. Create one large and two small paper cylinders from the same-color paper and glue to sides and top of box to make the tower roofs.
Create one large circle (approximately 10") and two small circles (approximately 4 1/2"). Make a cut in each from exterior of circle directly to center. Roll each into a cone shape and secure with tape. Hot-glue cone roof pieces to castle towers.
Clouds: Crumple and glue sheets of white tissue paper to sides of castle.
Cut a straight line to form an opening at front center of bag. Continue cutting into folded bottom of bag to create an opening for neck/head. Cut armholes on sides. Gently crumple vest to make paper more pliable.
Fold corners closest to neck opening to create collar. Fold back the front center of vest approximately 1 1/2". Punch holes through folded-back sides of vest.
To make laces, tightly twist two 40" lengths of streamers together.
Starting at vest bottom, thread lace through vest holes; tie in a bow at top.
Optional: Accessorize front of vest with paper pockets and fill pockets with gold-paper coins. Draw details like stitching and buttonholes.
Cut a 14"x 18" square from a paper bag. Fold in half widthwise to form a 6"x 14" rectangle. With folded edge at top, fold upper left and right corners in toward center of paper, creating a triangle shape.
Fold up edge at bottom approximately 1 1/2" on both sides to create a hat shape.