You will need:
Buttons, any size and color of your choice
White, one-inch elastic, each cut six inches long
Using the white thread, sew each individual button onto the elastic. Make sure you get them close together. Turn the button ring inside out and sew the elastic together to form a ring. Once you sew the two ends together, turn the buttons back, showing them on the outside.
You can make as many napkin rings as you like. This is a great project to do while waiting for a doctor's appointment or while watching TV. Try using specific colors that represent each holiday. Have fun!