CrystalSky already has 3 mounts; ($79 CrystalSky Remote Phantom RC, $79 CrystalSky Mavic Pro/Spark RC, $79 CrystalSky Osmo Pro) https://store.dji.com/product-search#stq=Crystalsky&stp=1
Still no mount for regular Osmo+ without the cable hanging.
Mavic Air Charger will also not work?
New mount coming for Mavic Air?

@7:45 CrystalSky mount does not properly fit Mavic Air RC

Although he says it won’t fit maybe he could have shown it a bit better than he did.

Hi there, CrystalSky Mavic Pro/Spark Remote Controller Mounting Bracket is not compatible with Mavic Air RC and the charger of Mavic Air is not compatible with CrystalSky either.
Please note the future release in our website, thank you.