I have a mask of a Nameless Ghoul from the band Ghost that I use to cosplay as them. For their latest album they removed the mouth piece on the mask to allow back-up vocal. I would like to remove the mouth piece on my mask for the same reason. I have a dremel (link below) that should allow me to do it however I'm concern that because the mask is made of resin I might end up damaging it. Does anyone have experience with cutting resin and if so, how can I plan ahead for this.