Sure
I build android apps in my spare time and one of my apps is btcontroller:
https://play.google.com/store/apps/details?id=softigloo.btcontroller
I'm hoping to use this site as the apps main website for information and tutorials.
The app turns your device into a gamepad controller for other devices and party of the app allows you to build your own controllers.
Users can then upload these to allow other users to download and rate them.
I don't have a lot of active users but it has been around for a long time so I've already accumulated an amount of user uploaded controllers already, hence the initial storage size.
I don't envisage a large amount of future uploads and the actual controller data is quite small.