quite an array of wood form my handles.
Native woods like: Pear, Plum, Juniper, Laburnum
Exoctic woods: Wenge, Zebrano, Olive. I also got some wood from a friend in Brazil: Imbuia, Falso Pau Brazil
Some of my wood I stabilize. This makes them less sensitive against moisture.
In rare cases I use bone or synthetic martials like Mircata.