The traditional pumpkin-carving method involves cutting a tapered
circle around the pumpkin stem, removing it and then scraping
out the pulp and seeds. Carving pierces through the rind, all
the way to the pumpkin's interior. This method is referred to
as hollow carving. If you choose to surface carve the pumpkin,
you do not pierce all the way through the rind.
The method you choose will influence how you illuminate your
jack-o'-lantern. To light a hollowed-out pumpkin, place the
light source in its interior. However, this does dry out
the pumpkin rapidly. Exterior lighting is used for surface-carved
pumpkins. The light source should be placed at an oblique
angle to cast strong shadows. Positioning the light overhead
will produce less shadowing and, in effect, a less ominous-looking
jack-o'-lantern. Placing the light below the pumpkin will
result in strong shadows, which can give the finished piece
an eerier look.
If you incorporate a combination of surface and hollow carving,
you may require both methods of lighting.