Well, for the wig I got a long, blond wig about shoulder length. The reason for that is for more flexibility as far as layering goes. Layers are the biggest thing with Emil's hair style (other than that strand of hair that defies gravity). Make sure you have a lot of photo references at your disposal. And be prepared for major frustration for that strand of hair--make sure you have LOTS of hair spray and some hair gel. (Maybe even use some clips to keep it up while it's drying.) Also, look on youtube for wig styling videos--they help a lot.

As for the sword, what I did is I went to the hardware store and picked up a big sheet of styrofoam (not too thick, though). I basically carved the shape of it from that (mind your proportions too). Once I did that, I covered it with a thick layer of paper mache to make it a bit more sturdy. And once that was dried, I painted it. For the sheath, I took one of those science poster boards and carved it out of that. I then took all the pieces and glued them together with wood glue (since it's the most sturdiest). Then I painted it and then attatched the strap that would hook onto a loop on my back so it can be held where Emil's sword is. Then I added the circle...thing (made of styrofoam and paper mache).

Good luck with the costume.