iPhone 15 Pro horizontal Stand to make use of Apple new StandBy feature. The Stand will also accept an Apple original MagSafe charger. 

The Stand  is made of 3 components, the Stand, the Rubber base and the MagSafe Cover for those not wanting to use a MagSafe charger. The Rubber base also serve the purpose of holding the cable inside the support. I use Filaflex 70A for the Rubber base and the MagSafe Cover.

The assembly and disassembly of the MagSafe charger can be facilitated by slightly warming the base with a hair dryer. For the disassembly, you can push the MagSafe charger out from the inside of the base with a screwdriver.

The Rubber base will hold the MagSafe cable in place and also weight the whole Stand.

Cavities at the bottom of the Stand can be filled with fishing weights and glue to weight the Stand. 

The attached Fusion 360 file allows to create versions for other phone models. Parameters permit to adjust the dimensions, but some tweaking may be required after changing the dimensions.