I am skinning a turbo inlet pipe that is round, tapers from one end to the other and also has a tight bend in it. Initially I layed down a first layer using 25mm plain weave CF tape because the inlet pipe was made up of two pieces and i needed the piece structurally joined before moving on. I have sanded the piece down ready for the next layer which will be the nice visual layer as seen when the piece is finished.

Mould wise, my first thought was make a box just larger than the part, pour in some silicone to get the shape, split and release, then put back in the box and pour in some styrene based foam to make the pattern then just layup over it and use some heat shrink over the top to compress, then dissolve the foam after, you could get the mould made in a couple of hours and it's re-usable for small runs