you'd make a T w/them if you go the horizontal route. one mic just straight on, the other above/below it pointing forward, but laying on its side w/the caps pointing out at you (from the side).
the vertical route is the way to go. top mic upside down, bottom mic normal and have them about 1/4" apart. twist them around as needed this way. XY, MS..etc. there are great pics in the archive.