I'VE DONE IT A FEW WAYS,
I HAVE A STAINLESS STEEL SAW BLADE THAT GOES ON MY HANDSHAFT, A RAZOR SAW WORKS GOOD, & THE PHOTO-ETCHED SAW BLADES THAT FIT IN YOUR MODEL KNIFE HANDLE WORK GREAT FOR THE DELICATE PILLERS. MODEL CAR GARAGE SELLS THEM
IF YOUR MAKING STRAIGHT CUTS, THE BACK SIDE OF A NO.11 BLADE WORKS GOOD TOO, PLUS IT REMOVES THE MATERIAL AS YOU GO, INSTEAD OF PUSHING IT TO THE SIDE