Inluded in this 1/6 scale TARDIS Key collection is:
Classic TARDIS Key
YALE Key
YALE Lock
Blank Key
Perception Filter Key
Due to the small nature of these models I used a mult-jet fusion printer to manufacture mine (Shapeways) in order to capture all of the details, however a modern resin printer could easily print these now with no issue.
They are too miniscule for a FDM printer to manufacture unfortunately.