The sheath is so strong.
Here in Indonesia, we call it as 'pelepah kelapa' and Javanese call it as 'mancung'.
Long time ago, this part was only thrown away or used as 'fire wood' on the village.
When I was a little girl, I used to collect the sheath to make ship toy or 'plate'.
But, there are a lot of creative people here that processed this waste into beautiful products.
There are so many products such as fruit plate, lamp caps, pencil holder, pen holder, miniature of ship, tissue holder, partition, and many more.
You can see here.
Source : riaucraft.wordpress.com
Cause these waste become a product that have high value on art.
That process is really increasing the value of the waste, and of course environment friendly.