I use my scroll saw for making sword props for medieval fairs. I use a scroll saw pattern and just cut out the shape of the blade and sand it into a bladed edge. For safety reasons, metal swords and knives aren't allowed at most conventions so I get a lot of people asking me to re-create their metal swords in wood.
Using a scroll saw really make it pretty easy to imitate curved and complicated blade designs. Mine is designed to cut pretty big pieces of wood -- but it was expensive. If anyone wants to make wooden props, there are tons of free scroll saw patterns online! Dig in!