Anyone know if it's possible to convert a curve, such as one drawn with the Pencil Curve tool, into an object so that it could be animated, etc???

Also, any thought on how, if possible, can a curve can be drawn in 3D space, as they normally can only be drawn in the orthographic views, and thus turn out flat? Is there any trick that would allow you to draw them in the perspective view?

Cheers!