This is the beam sword from Super Smash Brothers Brawl.
I was cleaning up my computer when I found this in my files, which was a good thing cause I felt like doing a quick build.
The full size picture shows the actual size of the sword at 15 cm. I will be resizing this to about 17-18 cm when I release the template due to some pretty small pieces.
3D Editing by Brandon.
Will be released soon at Nintendo Papercraft [link]