you can cut it by sawing it. maybe with a coping saw or a jewelers saw frame
with a wax blade.
>If you get the plexiglass in scrap pieces, how do you cut it to other
>shapes? I remember doing etchings on plexiglass in high school, but I
>haven't worked with it since and don't know what might be involved in trying
>to cut it.
Visual Art Studies
University of Texas at Austin