THIS MAY CRASH YOUR BROWSER :)
Stamen’s Watercolor and Toner tiles resampled into the Waterman Projection using d3.carto.map by Elijah Meeks. Based on http://bl.ocks.org/emeeks/abcc82cc61c52fc47b19
Stamen tiles from maps.stamen.com.
Waterman projection by Jason Davies
And here’s a screenshot if it’s crashing your browser. And here’s a screenshot of toner.