You can download sunflower art from the internet, transfer it to your jeans and paint them on with fabric paint. Or you can embroider them onto the jeans.
Hi Kat: There are several nice fabric paints available to use, all you need to do is to draw what you want on a piece of paper until you are comfortable drawing it and then, draw it on your jeans and paint it. Or......you can check this out and see the drop down menu for Donna Dewberry. She shows you exactly how to paint different flowers. I have used her techniques and it's really easy! :)
This one tells about Sunflowers
here are some ideas for stenciling onto denim:
You can use acrylic paint but mix some fabric medium into the paint before painting onto the fabric. Love this idea! I might have do to something similar to mine!