Locate the center of the cardboard piece. Measure and make a mark 5/16 inch from this point in all four directions. Measure and mark 5/8 inch from each of four points. Continue to mark points 5/8 inch apart in straight rows and columns until you have five rows of 12 each.
Insert a brad fastener through the cardboard at each mark. Bend the fastener ends in opposite directions to lie flat on the back side of the cardboard
Attach a 10-inch piece of wire to the bare wire by twisting the ends together two or three times. Secure the connection in place on the back side of the cardboard with electrical tape. Wind the bare wire in a maze pattern around the base of the brass fasteners on the back side of the cardboard. Do not cross over a previously placed wire.
Connect the remaining end of the 10-inch wire to a lamp holder terminal by looping the bare end around the base of the screw and tightening the screw. Connect one end of the second 10-inch piece of wire to the remaining lamp holder terminal. Connect the remaining end of the 10-inch wire to the negative terminal on the battery holder.
Wrap one end of the 24-inch piece of wire in a tight coil around the length of the nail. Connect the remaining end of the wire to the positive battery terminal.
Touch the end of the nail on the heads of the brass fasteners to see which ones light the bulb. Remember the fasteners that worked, and continue trying to navigate the maze. Each time the bulb lights up, a circuit has been completed. Ask a friend to construct a different maze for you to solve.