revolving two different sketches around an axis

Hi guys/gals! I was looking to revolve two different sketches around an axis (similar to loft) but am having trouble with it. Instead of using a complex shape, I figured I try with a simple trapezoid on top and a square on the bottom spaced 10mm apart with axis at 5mm. No luck so I tried to do it around a sketch profile but the middle flattened out not maintaining its thickness.

I was hoping a loft tool around an axis was there but couldn't find it. Any ideas on how to do this? I feel it's simple but I guess I have writers cramp of the brain or something. Thanks.

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