Raspberry Pi 40mm Noctua Fan Mount

My Octopi was overheating, and throttling, because it's case had very little airflow. I went a searching for a fan in the parts bin, but alas, there were no 5v fans (or a boost converter) to be found. I picked up a [Noctua cooling fan](https://www.amazon.com/gp/product/B00NEMGCIA/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=gtxcnc-20&linkId=d5a7c873edd88a002471c642704eab93) from Amazon, and it came with these funny little silicone isolation feet. I figured, why not, and after some inspiration