1. Gather small autumn leaves or larger ones that can be broken or cut up.
2. Clean and dry them if they are dirty or wet.
3. Press them by setting them between two sheets of waxed paper. Then set the leaves and waxed paper inside the pages of a book. Put a pile of heavier books like phone books or hardbound novels or text books on top of the book holding the leaves. Set them aside in a dry area and let them press dry and flat for 2 weeks. Pressing and drying them will remove excess moisture too.
4. Measure and cut two same sized pieces of clear plastic self stick shelf/drawer liner in the shape of a paper bookmark, about 8 inches by 2 inches or wider if you prefer.
5. Remove the backing from one of the two pieces of self-stick plastic liner. Then set it on a table or another hard work surface, sticky side up.
6. Get your dried pressed autumn leaves and arrange a few on the sticky part of the plastic shelf liner. Make sure you leave a small border around the outer edge of the liner that does not have any leaves on it, like a small frame.
7. Take the other piece of sticky clear plastic liner and peel off the backing.
8. Starting at the top or bottom of a 2-inch side, set it on top of the leaves and other piece of liner, pressing down as you go.