Landing gear for SmartrapCore alternative Z

You thought my landing gear (http://www.thingiverse.com/thing:774676) was a good idea but you updated to Andreas L. alternative Z system (http://www.thingiverse.com/thing:896556), and now you miss that cool rubber-band holding device?

Then today is your lucky day : here's the NEW landing gear, designed for the new Z system, yeah! :)