Paperoll.io - Print your social photos on a roll
Unity - The multiplatform game creation tools for everyone.
Prynt - Turn your smartphone into a Polaroid
Godot Engine - Feature-packed 2D and 3D open source game engine.
Mixtiles - Mixtiles is a photography application that turns your photos into self-adhesive wall art.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.