A simple solution to organize cable, i use it under my desk but you can pretty much stick them everywhere, ive included the fusion file, the model is somewhat parametrized so you can use the user variables to set how much cables it should fit, youll have to alter the extrusion that does the cutout though since i dont know how to automatically do that 

you just stick the comb wherever you want with double sided tape , clip the cables in and secure them with the slider