If you want to line up your mustache then get you some clippers with a straight cut on them and start clipping from the bottom instead of the top of your lip.
A perfect way to line up a mustache is to place one end just right above your lip line and make sure it will not follow off. Once you have done that, take the other side of the mustache and also put it right abpve the other side of your lip. Make sure the sides are even.
Use word to create the shape you want, then copy, paste, and reflect it, thus creating a mirror image. Join the two pieces, print, and use as a template.