2. First cut off the circle on the disposable paper cup with scissors, and then cut out strips of the same size, as shown below.
3. Fold the cut strips from the inside out and flatten them all.
4. Trim the ribbon with scissors to make it sharp and more like petals.
5. Paint the petals yellow and the stamens red with colored lead, as shown in the figure below.
6. First cut the green paper into leaves, and then roll it up to make a stick, as shown below.
7. Finally, stick the green branches and leaves together, then stick them on the back of the paper cup, and then draw some grid lines for the stamens with a black pen.