My favorite part has been repurposing the mahogany from Ratka's old sewing machine bench legs into small details of the new piece. It's a very well behaved wood and has a scent that I've taken a liking to.
E.g. the "daggers" securing the undercarriage to the sarcophagus needed some sort of tab for easier handling. To wit, I resawed some of this nice old wood and made a pair of little doo-dads for easy grabby: