Suppose you've just extruded a nurb circle along a nurb curve, so you have a simple snaky tube, like a short piece of hose.

How would you get a cap on one / both ends of that hose, so it appears closed, and you cant see inside the ends? (Like the cap option in the Cylinder and Cone primitives)

There doesn't seem to be any option in the extrude tool to add such caps.

Dan