Post boxes across the US are to be dressed up as Star Wars robot R2-D2 to celebrate 30 years since the release of the sci-fi series' first outing.
Some 400 boxes will get the new look, including outside Hollywood's Grauman Chinese Theatre, one of first cinemas to screen the film in 1977.
The makeover is part of a post office campaign for the announcement of a surprise stamp on 28 March.
The public have been urged not to tamper with the droid mail collectors.
Chief marketing officer Anita Bizzotto said the robot postboxes were a "little teaser" for its announcement later this month.
"When you look at a mailbox, the resemblance to R2-D2 is too good to pass up," added Ms Bizzotto.
The USPS website is running a clip from Star Wars in which robot C-3PO asks: "R2D2, where are you?"
In the next shot, someone is seen slotting a letter into the little beeping robot.
During the six films of the Star Wars series, R2-D2 - regarded as a more courageous robot counterpart to C-3PO - was responsible for saving his human counterparts.