First, we need to prepare an abandoned CD and then clean it.

Then use another color of cardboard, cut it into the shape of hour hand and minute hand, and then fix the hour hand and minute hand on the hole of the CD.

Next, cut the cardboard into squares, color it with colored pens, and then write the numbers 1 to 12 respectively.

Finally, a simple clock model is made by sticking the digital cardboard on the CD with double-sided tape.

Is it easy to give special tips?