I just found a guy local that sells exotic burls, mainly from Australia. He gave me a few small pieces of amboyna, corrugata, thuya and brown mallee. A few of these woods have bad problems with inclusions and he told me what he does. He makes vessels and only sells at art shows nationwide. He made a vessel last year out of red mallee that had a lot of inclusions, so he filled these cracks with silver solder, then finish sanded and sprayed casket lacquer over the vessel. Sold it for $10,000 :D