Wreath Collage
Make a wreath out of a collection of autumn leaves. Just glue your 
finds to a ring cut out of cardboard. When you're finished,preserve 
your wreath by spraying it with clear plastic spray or spray 
paint(Spray paint can be hazardous and messy,so complete this step 
outside)

Leaf Shapes
Tape leaves to a large sheet of paper and help your children trace 
around them. Remove the leaves and compare the shapes. Then draw 
pictures inside the outlines that are suggested by the leaves' 
different shapes-fingerprints,mittens,faces with wild hairdos.

Glitter Pinecones
Dip pinecones into a bowl of white glue, and then dip them into a bowl 
of glitter. Let them dry,and hang them from the ceiling by a string.