Bezier cirlces/tubes

Ok, i want to make a lightsaber, just so you can get the feel for what i’m wanting. I’m planing on having this different colord section about 1/3 of the tube. I thought i could use some bezier cirlces to do the trick but it didn’t work. I then tried to use another tube and that didn’t work. I want the shape to be something only a bezier circle can create. I’m at a dilema. Please help. And remember i’m puting the different colord section around the tube, or cylinder.

Convert your curve to a mesh with Aly-C



Ok i just tried that and it dosn’t work. It dosn’t do anything.

RMB-select curve in object mode and Alt-C doesn’t bring up a message “Convert Curve to Mesh”?