I have seen a lot of ideas concerning Cable lifters

Made these last month...

^This^ sort of is becoming a sales pitch for mono blocks.
I usually like looking at a mono block amp on the floor in front of the speaker, but the Haus-boss like them behind the speaker (out of view). 

I am not sure what the speaker cables on ^there^ cost, but I suspect that it could be approaching the cost of a second amp?

Obviously I am more of a mono block buy than a cable lifter guy. But the latest used amp is a stereo tube unit, and I should either sell it or be happy with the long speaker cables.
Since I did not have any of the long speaker cables laying around, I am using the lamp cord until the cable arrive.

Glass is probably the best Neutral choice and what do we have in abundance.

Glass has a high breakdown voltage, so glass and porcelain are great on old power poles with high voltage… and they were even popular 150 years ago on the local telegraph lines. But I suspect that other materials may have dielectric constants that are better (lower??).
(Was that covered in the bunking video?)

@holmz Confused by your comment about monoblock amps. The amp in that photo is a stereo amp. The speaker cables are Tel Wire cables,  which while more valuable then some are not in the "amp money" category. 

As an aside, regardless of using monos or a stereo amp, in general, you will benefit by keeping speaker cables short and using longer interconnects to the preamp or source w/volume control. In general when doing long cable runs, balanced cables are beneficial if you have balanced gear. See my system page for an example. Cheers,

Spencer

@kellyp 

Omg this has to be the best test for psychosomatic response

Perhaps, but it keeps the robovac from damaging the cables and it was a fun project to make. Cheers,

Spencer 

I’m just going to whip up a few on my 3d printer and call it good. If nothing else, buying one to print cable management clips and brackets is well worth the cost:)

Worst case I’m out 20 bucks of plastic. Best case I get to answer the question for threat of my life of why I have mini golden gate bridges on the floor🤣

The best idea is first to try something inexpensive to see if it works.  If it's some company marketing them with claims they cannot prove, use terms like quantum mechanics, designed with carbon fiber with engineering from F1 racing, run away.