Hi Misty! Personally, I use to do that with the "Polyline's tool" in the vertex room, but here is a good tuto with the extrusion method: https://www.youtube.com/watch?v=dr3ynKuPx50 I like also the Mark Bremmer's method in the Spline modeler: https://www.youtube.com/watch?v=SXoRUOBNQ08