i am creating a haunted mirror... i had someone donate an old mirror w/ an awesome frame... the problem i am having is w/ cutting the 1/4" acrylic "plexiglas". the shape is kind of wavey... several curves in it. so far i have tried using a 27tpi jig saw blade (began cracking), dremil w/ cutting disc (time consuming and i have broken several wheels)... if any one has any ideas plz let me know.