Rearranging the letters of 'Special delivery stamps' gives:
Price speeds mail vastly.
(by Jean
Merges by hand) (2004) (pending approval)
Other related anagrams without their own page:
"Prince Charles and Camilla to appear on postage stamps" -> "Slaphead palace parasite, contrasting common slapper." (by David Bourke using Anagram Genius) (2005)
"His Royal Highness, Charles, The Prince of Wales" -> "We hope he'll chastise his self-caring son Harry." (by Tony Crafter by hand) (2005)
"Prince Charles Windsor" -> "Princess? Rancid howler!" (by David Bourke using Anagram Genius) (2003)
"HRH Prince Charles and Camilla to wed" -> "Shallow AC/DC philanderer in rematch." (by David Bourke using Anagram Genius) (2005)
"The wedding of Prince Charles and Camilla" -> "Hall for the new Di Spencer? Malign acid cad!" (by Mick Tully using Anagram Genius) (2005)
"The General Post Office" -> "Each letters' pigeon off." (by Mick Tully using Anagram Genius) (2007) (pending approval)
"Royal Mail postal service" -> "I may lose parcels to rival." (by Mick Tully using Anagram Genius) (2006) (pending approval)