[Nightmare]

Augmentation for 4E had a spot in the cyberware section for false cyberlimbs - something someone could wear over their arm to make it appear like they had a cyberarm.  I thought that would appear in Chrome and Flesh for 5E but unhappily it didn't , so I'm wondering what the game mechanics (price, concealable factors, disguise pluses, ect) might be for 5E or if this type of item would even be acceptable for 5E. Any guesses? 

[Rooks]

Chrome flesh has stats for non powered prosthetics use those basically the same just hollow it out use case mod to look like a cyber arm

[Kiirnodel]

Or just use the costs from 4E. The scale on cost didn't change much if at all between 4th and 5th. It could easily be treated as a disguise (because it is). Not sure what sort of rules you would need for a fake cyberlimb otherwise.