Bowls made of coconut wood will crack, so you can soak them in salt water regularly for a period of time to keep the inside of the wooden bowl moist and prevent the wooden bowl from cracking. Put it in a ventilated place and cover it with moisture to prevent mildew.
Coconut fiber can be used to make brushes, carpets, cables and so on. Coconut shells can be made into various handicrafts, tree trunks can be used as building materials, and leaves can be used to build roofs or weave. Coconut bowls are naturally healthy but fragile.