Samsung SmartThings Motion Sensor Magnetic Mount

I previously printed some "ball & socket" type mounts for my SmartThings motion sensors around my house but after a few weeks they loosened up and would not hold the sensor in position. I want a simple low profile mount that easily allows me to swivel and remove the sensors to change batteries, so I didn't want anything that required tools. These are a fixed downward angle so I have one t around 78 degrees and another at about 72 degrees that I just eyeballed for position. I may add another at a