As part of my thesis research, I helped build the TripleSpec 4 near-infrared spectrograph that will is a facility instrument on the Blanco telescope in Chile. Its detector is sensitive to infrared light, which means that anything warm will irradiate the pixels. We cool the detectors and optics with liquid nitrogen to reduce this background radiation but also need to insulate the cold components from the warmer outside. To help keep the heat flow low, we suspend the cold parts with thin and insulating fiberglass (S2) straps. Triplespec engineer Chuck Henderson and I custom made these straps by hand and glued them together with epoxy.
The above video shows a 5,000 pound test of one of our weaker straps so that we could know that the breaking point of the better straps was far above our necessary threshold.