Custom solar 5v iPhone charger
Note: this will require soldering, and I'm not 100% sure this will work.

First, take a lightning cable, and cut roughly 2 inches off of the cable on the usb male end. Strip the main wire down a bit, and you should probably be left with 4 mini wires. Take the red and black wires, and connect them to the I/O of the solar panel, via soldering.

Again, I'm not completely sure how a lightning cable works, but I believe this should work.

Here is an example how to get this done: How to make a Solar USB charger!