We've all used them, and will surely continue to do so. Nickelodeon Magazine (1993-2009) used to run a desert island gag in nearly every issue. I know I did one for them, but I can't find it. Maybe the bottle containing it will wash ashore someday.
My concept sketch was very simple, and the idea could have been conveyed with nothing more than stick figures.
I've met someone else,
We should see other people, or
I need my space.
Dan's commentary on the same strip can be seen at his blog.
Dan did a beautiful job of exploiting the extra space available in a Sunday page, placing the tiny island in an expanse of sea and sky. His waves are hypnotic, and I'll bet that drawing them was mind-clearing and therapeutic.
I don't know how the characters keep their phones charged. Perhaps the batteries run on the magic of comic-strip absurdity.
We have several more joint ventures in the pipeline over the next month, and beyond. Stay tuned, and enjoy our previous efforts here.