Instructions
Press the home button on the Wii mote. Open the Mii menu.
Create a new Mii, male or female, with the palest skin tone.
Scroll through the various head sizes until you find the one that looks like a rounded square. Select it. Do not add any hair.
Scroll through the eyebrows until you find the thick, black bars. Select them. Click on the up or down option on the right of the screen to lower the eyebrows as far down as they will go.
Sort through the eyes until you find oblong black ones. Move them up to sit against the eyebrows with the controls on the right of the screen.
Select a triangle nose from the listing.
Select an upside-down V-shaped mustache. Move it up so it sits directly under the nose.
Select the straight line mouth. Move the mouth upward with the up/down controls on the right side of the menu until it sits against the mustache.
Choose a white shirt. Adjust the weight of the Mii to about the middle by moving the ball on the weight line.
Input a name into the last menu and save the Stormtrooper.