Nice work,
I have a client who runs an engraving business - he uses computerised engravers - quite quick to set up and do a few panels.
I got him, some time ago to to engrave a number of stainless steel recessed plates on some 2 box/triwired speakers I had made.Looked real professional.
I have another client(I'm in the lending field) who has a computerised sand blasting machine - can be used to give an etched design/wording on glass,metal etc - could be nice to put the Aksa logo on light coloured anodised aluminium panels/lids etc.