re: Box for Muzz (with Inlay).

Thanks Splinter... nice tip,... never heard of aluminium ducting tape.

I've found that laser etching into the base is a hit and miss effort for me... I'm not savvy with the properties/species of various timbers and often find that grain plays an important part of depth penetration (or more so, lack of). 
Consequently, for my inlays I usually cut form a 3-5mm base that I will laminate to the top of whatever, after the inlay has been inserted.  

Must try that aluminium tape for both the base and inlay... for lettering, I need the in-betweens of letters like the centre of an "O" from the base cutouts to inlay "the original" into the contrasting inlay.  Though I've totally abandoned the base engrave method, for lettering, I'd have to cut two sets of inlays, from the contrast and the base materials.