This allows you to carry two controllers and spare batteries wherever you need.

Print with PETG for strength.  Prusament PETG Neon Green Transparent is pictured.

Use aprox. 135mm (or 5 and 5/16 in) of 1/4in threaded rod and screw directly into the plastic.

Optionally add super-glue to ends of “threaded rod cover” before screwing handle down.

Thanks to…

agepbiz for Minimalistic Xbox Controller Stand

and…

BaGooN for Hex Pattern Handle Collection

…which were both modded for this build.

There is also version 1 (which is fully printable, no other parts needed) - https://www.printables.com/model/474385-dual-xbox-controller-carrying-handle