tern your snaping on draw a nurbs cerve. say with Z being world up. from the center of the world there put yoru first point like 8 to the left, second 8 up, thred 8 right, and last 8 down.. asoming your looking from the top view..
Thin grab the second cv put it up one. the therd pull it up 2 and the forth pull it up 3. in the Z direction.. up..
duplicat that a couple of times Z+4 and combine them.. and you have it.