A modified version of my Gengar decoration that can hold a phone in it. I made it large enough where it can fit the vast majority of smartphones with its cases. The holder is 8.7 x 2.0cm, which fits most phones. You can also use it to hold your headset. The model is 20cm tall by default.
A reminder that if you make it smaller it might no longer fit a phone on it, so I recommend you dont change the size of it.