Why not get a hand-held engraver (as long as you trust your artistic skills) and do it yourself or get someone else to do it for you. Contact djbordie on here and get him to engrave it for you. Thats if he does plastic, I know he does metal body engraving, I doubt plastic should be a feat for him. But I cant speak for him so contact him and see if hes willing to do it for ya.
Or just buy one with trades already
