Materials needed for cardboard flower making: red cardboard, green cardboard (rolled into flower stems), pencils, scissors and glue stick. Here is a simple way to make roses out of cardboard. The specific steps are as follows:

1. Draw a spiral line on the red card paper with a pencil as shown in the figure.

2. Cut into strips with scissors.

3. Roll it in from the outside.

4. Use solid adhesive to bond.

5. The beautiful rose is finished!