Inspired in part by SpoonUnit's Cable Tidy, this is a fully-configurable cable shroud/tidy.
Just measure the diameter of the items you want to tidy, the diameter of the length of material you want to use as a spine and then configure the parameters in customiser accordingly (Or better yet, download and edit it in OpenSCAD, because Customiser doesn't want to display one of the changable variables). Then print as many sets as you need to make up the length of the tidy and finally assemble.
Its default configuration allows wrapping of a bowden tube and some wires and uses a piece of filament as its spine. Using filament means that you can easily cap off the ends by melting spare spacers to the end using a soldering iron to stop the rest of the tube coming off.