This would not really help anyone make a million dollars, it is just cool.
MAYBE a tat artist could spin it into a million bucks?
That seems to be one arena where 'trademarking' your art seems impossible.
The idea is to go a whole 'sleve' tat with a cyborg arm.
A whole sleve with a skeleton arm, done in clow-in-the-dark tat-ink (does that exist?)
A he-man trap-jaw sleve with 4 different Arm-attachment images, that change as you rotate yur wrist...!