Leaf prints
Have children collect leaves of different sizes, shapes and textures from around the garden. Press the leaves into flattened pieces of modeling clay and remove the leaves. Examine the textured leaf imprints left behind in the clay. Kids will start to notice the variety of leaf textures and shapes, and they will have a better appreciation for the diversity of plants.
Homemade wrapping paper
Children often go to their friends' birthday parties, and you'll always need wrapping paper for gifts. Collect leaves and other textured objects as well as craft paint and long pieces of drawing paper, cut to the appropriate size. Press the found objects into the craft paint, and use it as a stencil to decorate the paper. Kids can also do this to cards or gift bags. Adding stickers and other natural elements will only make for more fun.
Paper prints
Collect leaves of different shapes, sizes and textures, preferably leaves that lay flat, as well as craft paint, paintbrushes and drawing paper. Place the leaves onto a blank piece of paper. Dip a paintbrush in the desired paint color and throw the paint onto the paper over the leaves. Remove the leaves and you have a colorful splattered print with the outline of a leaf. Since this can be a messy project, it's good to do outdoors for easier clean-up.
Flower dobbers
Gather together some plain-colored stickers, drawing paper, craft paint and paintbrushes. Also get some dobbers, which are used for playing bingo. Place a single sticker onto a piece of paper; this is the middle of flower. Use the dobbers to place petals around the sticker. Then paint the stems and leaves with a paintbrush.