I just did a couple more coconut shell caves last night. I find it's simple
to just saw in half. Let dry in oven on lowest setting -like keep warm. After
several hours the coconut will dry out and start to come away from sides. I
just use a sharp paring knife and get behind where its starting to come away
and can get it out real clean. I also soak after all this is done in mild
bleach solution. Then rinse WELL, air dry and they work fine. Oh yeah of
coarse you need to drill holes for cave entrances. I'm a newbie so my advice
might not be the best, but it works for me.
JerryB