Choose an 8"x8" square of wood in any thickness you desire. Use sandpaper to smooth any rough or sharp edges.
Cut two 16" pieces of string. Lay one piece of string from the top left corner to the bottom right. Lay the second piece of string from the top right corner to the bottom left. Hold strings taunt and mark the center of the block, where the strings intercept, with a pencil mark.
Hold the nail point side up. Thread washers and clock hands on to the nail in the following manner:
1. one washer
2. short clock hand (hour)
3. one washer
4. long clock hand (minutes)
5. one washer
Turn the nail point down while holding the washers and clock hands in place. Hammer the nail into the center of the wood block where the pencil mark is. Nail only far enough to allow free movement of the clock hands while assuring the nail does not exit the back side of the wood block.
Use self adhesive number stickers to mark the hours on the clock face. Start with 12 at the top of your clock, adding 6 at the bottom, then the 3 and 9. Fill in the remaining numbers evenly to complete your clock.
Use one paper plate for each clock. Put the hour numbers on the clock using self adhesive number stickers, or have children write them on with marker.
Cut two 5" strips of paper from black construction paper for the clock hands. Cut one of the strips in half for the hour hand. The longer strip will be the minute hand.
Lay the hour hand on top of the minute hand. Place them over the center of the plate. Use the pointed end of the metal brad paper fastener to poke a hole through the paper hands and the paper plate. Turn the plate over, and open the fastener petals to hold it in place.