Cut
a piece of foil about 2" to 3" (5 cm to 7 cm) longer
and wider than the Plexiglas. Spread two layers of felt
on a flat working surface and place a piece of foil on
top (shiny side up).
Center the Plexiglas on top of the foil and press it down
lightly to mark its outline on the foil. Remove the Plexiglas.
Using the impression it has left on the foil as a guide,
arrange your leaf vein side down on the foil. After composing
your material, carefully replace the Plexiglas on top
of it.
The
leaf is placed on the foil and then covered by the Plexiglas.
Tightly fold two opposite edges of the foil around the Plexiglas
using tape to secure it. Leave the other two ends of the foil
open.