On the construction paper, place the ruler parallel to the short side and trace down the right side of the ruler.
Move the ruler over and place the left side on the pen line, then draw another line down the right side of the ruler. Keep going until the whole paper is sectioned off. You'll get about 8 - 9 strips per sheet of construction paper.
Cut out all the strips. You're going to want 26 strips total - 25 rings for the countdown and then one for the head.
Use a stapler to turn 24 of the paper strips into rings, attaching them in a row. Staple the 25th ring but don't attach it, and leave the 26th paper strip alone.
Draw out your embellishments (like antlers or a hat) directly onto the craft foam. Then cut out using the scissors.
Add fun embellishments to the craft foam with glue, like ribbon and a mini wreath.
To the lone rings, add your embellishments with craft glue (the hat, the antlers, the noses, etc.). Let them dry. Then attach them to the main ring chain with the last paper strip.
Hang your chains on the wall near your tree or in a place where the kids can reach. You'll use scissors to cut off one of the rings every single day from December 1st through Christmas morning.