Plot your design on the wall using chalk. Trace an outline of a branches to act as the base for a line of flowers, a favorite phrase, or random amoebalike shapes for unusual, organic-inspired art.
Place a thumbtack through the center of one muffin cup so the tack head is on the inside of the cup. Press the tack along the chalk lines you've drawn.
Place a miniature muffin cup in the center (or slightly off center) of a regular-sized muffin cup. Press a tack through both pieces.
Push the tack containing the two cups next to the first piece on the wall, also along the chalk line.
Continue pushing tacks through variations of single or double liners, pressing the tacked papers onto the wall along your guidelines until the entire design is covered. Keep papers close enough to one another to touch if creating a continuous design.