My friend has had a swear box introduced at work, so when he and i are on the phone he will roll out his standard crap anecdotes but replace certain words.

So far he's used:

Golly
Crikey
Blimey
That's complete bobbins
Gosh
Tonker

I generally use 'crikey' when trying to not be disinherited by the grandparents. Do you have your own 'safe' words? DO YOU?