SOS 20k by ROAMPROOF: http://www.roamproof.com/sos20k/
Life Saving Portable Solar Battery
SOS 20K is a portable battery designed for when you need it most. Solar Charging for 4 devices at once. Water/Dustproof IP67. 20,000 mAh. 3-in-1 LED SOS Signaling.
Nuuk team helped SOS 20k with raising pledges and traffic in the last weeks of their Kickstarter campaign (raised $195,000).