just say what your shop custom guitar would be and who it is made by (i.e. gibson/epiphone) remember to tell color, pickups, # of frets/fret inlays etc.

i'll start

company:gibson
type:SG-3
overall physical appearance:all gloss black with no woodgrain or flames. Abalone rose flowers for the fretboard inlays on the fretboard horizontal rose vine on the 12th and 24th frets. (24 frets, 60's slim taper neck). Intertwined rose vine inlays on either side (all inlays are abalone) and a rose on the headstock and rose flower shaped pegs.
pickups:1 gold plated gibson '57 humbucker for the fretboard, middle: regular EMG, and bridge a seymore duncan dimebucker.