You Will Need:
A collection of leaves, seeds, grass, sticks, feathers, etc., tape, clear contact paper, and a piece of regular paper the same size or bigger than the contact paper.
Take a walk with your child and collect treasures from the ground. Tape a piece of clear contact paper, sticky side up, to a flat surface. Help your child arrange the treasures on the contact paper. Be cautious that young children don't put small objects in their mouths. Then, lay the piece of regular paper on top of the contact paper and have your child press down so it adheres to the contact paper and acts as a backing.
This can be done on a table or floor. On the floor, you tend to have closer physical contact with your child.