Rear-View Mirror Mount for Dashcam

On request from another thingiverse user, I attempted to build something that would hang from the rear-view mirror while holding a dashcam. Since suction cups virtually never stick to anything, *if* this version works, it will be a great replacement.

If it almost works, but needs a few modifications, I designed this in OnShape, so create a (free!) OnShape account, make a copy of this file, and change the necessary dimensions.
(https://cad.onshape.com/documents/90ddb014420c1b50983c7b0a/w/a6a7