Got a new Crosstrainer and wanted to be able to easily mount my iPhone on it. On Amazon every fitting piece was around 35€. I had an old MagSafe Ring laying around, so I designed the mount around it, glued everything together and strapped it to my Crosstrainer using a cable tie. Works perfect!

MagSafe Ring Link:

Nillkin 2er Pack Magsafe Wandhalterung Ring, SnapHold Magsafe Magnetring, Magsafe Magnet Aufkleber Kompatibel mit Magnetic hülle/iPhone 13/13 pro/13 pro max/12 pro max/12 pro/12 Telefon - Blau https://amzn.eu/d/bvFQJPI

Oh and here are the free print files if you are interested:

https://www.printables.com/de/model/520305-magsafe-mount-for-crosstrainer