I am not sure glass is optimal??
If one likes the idea low dielectric material not slowing down the elective field, then something a lower dielectric constant than glass would be better.
But just try some glasses as well as some plastic cups…
I have seen a lot of ideas concerning Cable lifters
I have seen a lot of ideas concerning Cable lifters and all seem to be pricy considering the value and appearance. But what if there was an answer that cost virtually nothing and you had the option to choose a multitude of designs and capabilities?
Glass is probably the best Neutral choice and what do we have in abundance. Used glasses (Goodwill). There are so many options around and possible just waiting one more day you can find exactly what you want and even if you don't like their choices there are options at stores that go far beyond what the High End Audio vendors offer. Here are a couple of examples: