Yes, everyone's favorite space obsessed Portal Personality Sphere, the Space Core, now in a handy pocket sized travel version! Now you can never be too far away from all that SPACE SPACE SPACE when you make this papercraft! Just be sure you don't open a Portal to the moon or else he may just suck you into it from pure excitement too!
For added fun, try scaling up the model and putting in an MP3 player for fun space sounds!
The Space Core is an extremely simple box like papercraft that comes from the site Cubeecraft.com http://www.cubeecraft.com/series/valve