Hi Stuart, I'm thinking that's some pretty specific technique. I think Stick 486, has done some pretty fancy inlay work. I think someone last year posted something on wood burning. Have you tried looking up the topic on YouTube? Or perhaps the maker of the wood burning gear could be helpful, perhaps their customer service department can help. Finally, although I'm just fiddling with it now, I recently bought a Veritas router plane, plus their inlay kit. The plane is really good for accurately hollowing out the recess for the inlays, and the extra kit may help with cutting out the parts. Here's a picture of the plane.
The picture is of the body of the plane, the other is the attachmnt for inlays. Utilitarian gear with an elegant look.
