What we have today is the SD (super deformed) version of the ZZ Gundam papercraft by toyoppe. It comes with a backpack and a double beam rifle.
The MSZ-010 ZZ Gundam is named after the series of the same name and designed by Makoto Kobayashi. The ZZ is pronounced as Double Zeta. In the series, this Gundam is one of the transformer type - it can switch between the massive G-Fortress flyer, the core base, core top, and core fighter.
ZZ Gundam Papercraft [toyoppe]