if you make them out of your old lai see envelopes! : ) How is the year of the monkey going? How many cards have you made? I found that some of my red packets were red on the inside as well and perfect for making roses so here's something else you can try if you have more envelopes lying around.
You can also attach your rose to wire, a wooden chopstick, a pencil...
and bright if you pop along down to the Light Rose Garden. It's a beautiful outdoor installation that lights up at night (6-11pm each evening). It's currently at the Central and Western District Promenade but will move to Tamar Park next weekend. Take your parents out to see them and explore the area as well.
Happy Valentine's Day!