Prepare the coconuts by drilling a one inch hole in them . Drain out the coconut milk and rinse out the inside of the coconuts with spring water. Add mead and then cork with a rubber stopper and airlock. All that's being done is fermenting the coconuts so the mead can absorb the coconut flavor.
To Make the Mead -- 1 Quart of Must with 12 ounces of honey which will give a medium mead. Pitched in 1 half of a package of normal bread yeast. Divide it up among the two coconuts and it almost fit. I had a little bit leftover so these two coconuts aren't quite 1 quart of mead.
Learn how to ferment a coconut mead by watching this video beverage making tutorial.