Just a simple, useless addition to the game.
It would create a new fruit called cocolime which is a mutation to the coconut and lime tree, eating the fruit will cause an energy boost much like coffee but only lasts for 2 seconds.
The chances of finding this plant in the wild will be 1 in 5-10 million. But to ease that you would
put the lime in a coconut and have a 99% chance of dying in the process.