M.E. Clifton James's Fake Military Uniform

Origin
Meyrick Edward Clifton James (1898-May 8, 1963) was an actor and soldier, notable for his resemblance to Field Marshal Bernard Montgomery. This was used by British intelligence as part of a deception campaign during World War II.

Effect
When any part of the unifrom is worn, the user can look like anyone they want. The clothes will change in appearance too. The user will be compelled to trick people with the effect.