M4 Rubber Mounts Shock Absorbers Anti Vibration Silentblock Car Boat Bobbins, Pack of 4 (M4 10x10mm)

These work well. I just mounted a small "computer fan" with them to reduce vibration noise and didn't have a problem. The "M4"s are small and won't hold a whole lot of weight. Maybe a quarter pound or a bit less?

Purchased to isolate an on board automotive air compressor. I loosely used zip ties as a safety restraint. Good thing. 6 months later my compressor was hanging by the zip ties. 3 of the 4 had completely failed. Current looking for an alternative isolation mount.