23:T669,Some of the models are designed for rigid materials and others for flexible ones. The models materials are not interchangeable, so pay attention to the file names. If you have any request on the design just ask me.
Por el día de la independencia argentina, el 9 de Julio, voy a actualizar algunas de las carcasas para celulares con una versión que haga alusión a la bandera argentina. Por la finura de algunas partes, este diseño sólo es posible en celulares relativamente grandes.
For other phone cases check this.
Here is the explanation of the files names:

Flex: made for elastic filaments like TPU. Not tested.
Rigid: made for rigid (non-elastic) filaments like PLA, ABS, HIPS, etc. The entire model is a little bigger and the holes for the buttons are opened on the front side. Tested only on PLA.

I spend part of my time making these models, letting them available and free for everyone. If you want to support my work, you can contribute with me here:

24:T6be,'9':52B 'a':56B,70B,129B 'abs':122B 'actualizar':57B 'algunas':58B,78B 'alusión':69B 'and':15B,132B,160B 'any':36B 'are':10B,23B,138B 'argentina':50B,73B 'ask':42B 'attention':28B 'available':159B 'bandera':72B 'bigger':131B 'buttons':137B 'can':172B 'carcasas':61B 'case':5A 'cases':92B 'celulares':63B,86B 'check':93B 'con':64B 'contribute':173B 'd610':4A 'de':47B,53B,59B,77B 'design':40

Found 11 3D-models for “9 g” across many websites

Headphone shell

Quick Connect Quadcopter Boom

Hand Held Gimbal Mount

Scraping Tool With Handle

micro servo 9g arms

LG G2 Mini d610 case

Aristocraft gears and box 4 axle

GoPro Servo 9G Mount

Catalyst Machineworks Merica 9 2.4GHz Antenna Mount

Project399 SuperG Gopro 9/10 30° mount

Suppressor Wall Mounts