A friend of mine collects small pieces of burl which really can't be used for much. He puts the worthless wood pieces in a mould and casts them with different coloured acrylics.
This is the pen after the worthless wood has been turned. It's a Cigar Ballpoint pen plated in Black Titanium.
I finished it with 6 coats of thin CA, followed with 6 coats of med. CA, allowing the blank to sit overnight. I sanded it back very gently with 0000 steel wool in the am, and buffed it with my 2 wheel string buffer.