In the spirit of Halloween, I made this cool demon-ish sword; heres how you can design one too! I used the free version of Autodesk Sketchbook for the iPod touch, however it would be easier I imagine to use the pc version.

Step 1: sword design

Start with a blank slate, and turn on the vertical mirroring tool. Begin drawing the blade using a dark color (I just used black for the outline). After creating the general outline for your blade, Add some curvy lines below to create a guard.
You've inspired me to look at autodesk sketchbook. <br>Cool Sword.