I made the sirius from ebony in fact looks like a macassar ebony,it was a old drawing too,40cm long and 1cm square.
The potter is made from boxwood,fine grain,easier for good details.
I would make the voldemorts wand from bone,antler, or similar maybe ivory,would be funny and really nice,this is my favorite wand,so I would spend some precious material for it.the main probelm with bone is that it's hollow.
I used some milling tools,but the problem is the machine,it's a 3mm chuck,not a 2,35mm.
I was planning to buy a machine for my personnal use,using 2,35mm tools,but lack of money,because of a new car...so I had to make the mills myself,I made a 0,5mm ball,a 2mm ball and a special profile for the grooves on the potter wand,the self made mills have not very good cutting edge,because not as regular as brand new carbide mills,but I can make special profiles,it's interesting.
I made them from steel,used tools I cut,to mke the mills,I made them with diamond rasp.