This thread has me wondering about using canned coconut water, the all natural stuff, as a ready-made wort for building yeast starters. It has a nice, pleasant flavor that shouldn't clash with beer recipes like Malta or other more strongly-flavored bottled malt beverages might. The fact that I love coconut is just an ancillary benefit, especially in a toasted coconut dubbel.
BTW and totally OT: I always keep a few cans of coconut water chillin' in the back of the fridge for emergency rehydration to treat a hangover. Then get some salts, carbs, and protein down to speed recovery. If you have an oxygenation setup, fill a trash bag with pure oxygen and huff it for super quick, extra effective hangover relief. Source: iron workers and shipbuilders do this all the time.