I agree with Bill to use the Inlace binder if you are using it for fill.
I can't remember the name, maybe Dryer, who turns beautiful pods. He suggest using thin CA in the cracks between the "lids?" and the main body. This is not to fill the hole but to adhere the solid brown lid; sometimes you can see a gap and sometimes you cant. They tend to chip where the solid meets the speckled.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety. Benjamin Franklin