Laminate some together and clamp it as tight as you can.This is what I do and the call is almost indestructible.Much stronger than one solid piece like you are asking for.If you do this,make sure you have your grain going the correct direction.
Our neighbor took down a Poplar tree a few months ago....I guess it's just going to lay there and rot....My dad told her not to try to burn it in the fireplace...She atleast acted like she understood.