Abstract: A combination writing instrument and handcuff accessory has a housing containing an elongated writing element with a writing tip. The housing has at its distal end a key suitable for opening a handcuff. The key has a longitudinal tunnel sized to allow passage of the writing tip. The housing also has a mechanism for reciprocating the writing element between a retracted and an extended position. The writing tip in the extended position extends (a) through the tunnel, and (b) outside the housing a predetermined distance. The portion of the writing element extending from the key can be inserted into a double lock hole of a handcuff.