chop stick holders.


I just noticed that chop stick holders hold the chopsticks about 1/2 inch, or 1 cm, from the table.I thought they might make good cable risers. They're cheap and made of wood or bamboo.You will need quite a few, so low cost is important.I've never used cable risers and I'm a bit skeptical, but this is might be a cheap way to experiment rather than let my uninformed bias rule!
steamboy
There's someone selling homemade cable elevators on here for $59.99 for 10 that seems very reasonable to me.
Hey, a solution that requires patience and commitment. And handwashing!  : )

How about the old toilet paper roll cylinders idea and put two notches on one end?

Splurge, and use new toilet paper rolls that you remove the paper from. For greater height, paper towel rolls. For stability, maybe one end will slip into one of those rubber caps they make for the ends of ironing board feet/legs.
Plastic rebar chair, available at Menard's ( Model Number: 852058 Menards® SKU: 1831235).
15 cents each.
If you’re a clever fellow or gal you can isolate the cable using some paper towel cylinders and some rubber band and pencils.