Ultimate Lens Flare - Post-processing Lens Flare that adds the optical aberration
Facebook Design - Devices - Images and Sketch files of popular devices.
150+ Free Illustrations & Animations - MIT Licensed to use for free in your next commercial project
Device Shots - Generate high-resolution device mockups using a screenshot.
Loading.io - Discover and animate icons, images, backgrounds, and more
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.