Yet another idea from Deep Space Sparkle: http://www.deepspacesparkle.com/2010/02/valentines-day-paint-and-paper-collage/
This photo is of the quick example that I did with the grade 1 class before they went off and made their own terrific creations. We started by painting a vase and the stems and leaves. Next we cut out flowers from construction paper, wallpaper books, doilies and tissue paper. I had a glitter station set up for kids to add a little sparkle to their flowers.
The kids had a lot of fun with this and are excited to bring their Valentine flowers home to Moms and Dads.