I agree with all of this. But unfortunately, they are not firm enough for anything overly precise. I'm watching Sc-Fi movies to figure out exactly what I'm looking for. It's right on the border of silicone and sapphire, like cheap plastic in the winter.
Makes me wonder, maybe I should put the mini zip ties in the oven to dry them at low heat. Pretty sure they used to store tires underground in the desert for the bikes in the Olympics... just hard enough to be fast, yet soft enough to not explode like a dry-rotted balloon.
It's sounds so easy!