The board materials they use are pretty sweet too, featuring amboyna, ebony and spalted maple.    From Wordnik.com.  [Archive 2008-02-01] Reference

Specimens of amboyna wood, the odoriferous sandal wood from Timor, clove wood, and other choice woods from the Moluccas and Prince of.    From Wordnik.com.  [The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c.] Reference

The result produces beautiful bowls and tables made from amboyna, a burled wood from Laos.    From Wordnik.com.  [Cool Hunting] Reference

The main part of the frame is constructed from lignum vitae and there are inlays of ebony, amboyna burl and desert ironwood.    From Wordnik.com.  [A Whole Lotta Nothing] Reference

To name just a few, burls can be found associated with maple, ash, apple, plum, redwood, mahogany and oak to more exotic woods such as amboyna.    From Wordnik.com.  [The Seattle Times] Reference