Cabling in lighting assemblies

Has any a quick and effective way of adding small cables (approx 2mm) into assemblies, I have a client who I design light fittings for who wants to see the cables in the assemblies, theres alot of different products so being able to quickly draft or drop editable stock cad parts in would be better. Is it a case of 3d sketch in assembly?

All suggestions welcome

SolidworksAssemblies