Having a surplus piece of Plexiglas, I began carving an owl.
In a free-hand fashion, I used a dremel and several files to carve the shape and details, from all sides and angles. After shaping, I sanded it with 100 grit to 2000 grit sandpaper, followed by polishing and more sanding – repeating the process until the skull was clear and transparent. The beauty in using this material is that it produces a bubble free finish, and it doesn’t carry the fractures found in stone. It looks awesome in any bright colored light – possibly a nice desktop feature!