Here is a 5 minute (no sound) video showing how to get your own mesh objects with maps into GameGuru.
You will essentially need:
1. a mesh object creator (e.g. 3ds Max, Maya, Cinema 4D)
2. fragMOTION
3. Your maps/images
https://www.youtube.com/watch?v=T8HG9GkGt5Q&feature=youtu.be