Android Question Screenshots in a virtual device for marketing images?

[Arf]

A while back I stumbled upon some site where one can upload screenshots, and download an image of a tablet with that screenshot displayed on it's screen, for use in making marketing documents etc.
I can't find it now, does anyone perhaps know what I am referring to?
Thanks

 

[Arf]

ah, found it.
https://developer.android.com/distribute/tools/promote/device-art.html