Cable droop

I bought bamboo cut it to length used twine to weave 3 pieces together into a cable holder efficient, nice looking,cheap fix 

Of all the droops I have to contend with this is the least worrisome.

I have always hated my cables laying on the floor, but now that my living room has been freshly painted, I have a Solid Steel double wide rack and have a new set of speakers arriving tomorrow I'm going to go through my wood pile, sharpen my jointer blades, break out my set of dado blades, fire up the the table saw and make some cable elevators. What color finish sounds best?

What color finish sounds best?

Black, White, Neon Orange...:-)

Regards