All four Comets and all four of 51s last Canberras all initially survived in some form.
WJ768 'Y' went to Akrotiri, where the fire section had their wicked way with her quite soon.
WJ775 'Z' went to CSDE at Swanton Morley, where she stayed for MANY years, somehow she escaped the proper preservation she deserved and ended up at Bodney, from where her nose has just been rescued.
WT301 'W' went to Chattendon, where she also survived for many years, before being scrapped in the late 80s/early 90s.
WT305 'X' ended up on the gate at Wyton, until the 'one gate, one gate guard' ruling, when she was carefully dismantled. There were rumours that her nose survived, but it's never reappeared.
XK655 'A' was retired to Strathallan, her undercarriage collapsing on arrival! Repaired, she was on display for many years, but was broken up when the collection was dispersed. I think her nose went to Gatwick.
XK659 became the Westward Ho bar at Pomona Dock, Liverpool. see:
FLYING WITH THE SNOWMAN – FLYING IN A DEHAVILAND COMET JET AIRCRAFT – ATHENAEUM LIBRARY OF PHILOSOPHY
She was later broken up
XK695 'C' was retired to Duxford, where you could walk through her, looking at the two nav stations and the rows of twin equipment racks (all empty). She succumbed to corrosion, and was broken up, her fuselage going to the dogs (literally) at Newton. Her nose ended up at London Colney.
XK697 'D' was not a mission aircraft, but a standard transport used for training. She stayed at Wyton with the Air Scouts until undercarriage corrosion did for her!