I usually eat and watch videos on my phone in the same time. I put the sound on the homepod mini, so I decided to design a model to put my phone on top of the speaker with the correct angle so my phone does not slip. This model does not require any support nor any hardware piece.

I've designed this model on Fusion 360 and made it parametric so I can change dimensions (angles, fillets, height…). I've uploaded all the files to do this, let me know if you need help ! :)