LONDON -- At the age of 96, Britain's Prince Philip is retiring from solo official duties. Over the decades he has become renowned for his stalwart support of his wife, Queen Elizabeth II -- and his blunt and sometimes offensive remarks. Here are a few of his memorable quotes:

1969:

"What do you gargle with, pebbles?" -- to singer Tom Jones.

"I declare this thing open, whatever it is" -- on a visit to Canada.

------

1992:

"Oh no, I might catch some ghastly disease" -- when asked to stroke a koala in Australia.

------

1995:

"How do you keep the natives off the booze long enough to pass the test?" -- to a Scottish driving instructor.

------

2000:

"It's a vast waste of space" -- at a reception for the opening of the new British Embassy in Berlin.

------

2010:

"Do you have a pair of knickers made out of this?"-- pointing to a tartan and addressing Scottish Conservative leader Annabel Goldie at a papal reception in Edinburgh.