I have several chunks of unstabilized buckeye burl that may be of interest. The pieces all have the cream and black coloration and could be cut up into several pen blanks. Send me a PM if you're interested.
I have about 30 unstabilized blanks about 7/8" sq. x various lengths up to 6". I also have about 50 unstabilized blanks of Redwood Burl about the same sizes.