To keep the diversity up, I'll call them zip ties. The zip tie thing looks like a slick trick. You don't get any uv exposure, so I don't see why they won't hold up. I have 20 year old zip ties under the hood and under the car, and they are as strong as ever.
My back seat cover is falling apart, so I'm going to see if I can take it apart and re-sew it.
