Naming it after what you were meant to have spent the money on is popular - There was apparently a 505 called "Barbara's Mink Coat" and there's a Sigma 33 called "Nod's (The Mrs') New Car".
I once bought a boat called Cunning Stunts but didn't realise the signifficance of the name until I tried to renew the insurance over the telephone one day.
When Brent Walker owned Brighton Marina the brothers brought down a huge wooden yacht on which to entertain their guests. They called it 'Brighton Marina'. It caused them so much confusion on the VHF they were forced to change the name!
How about the sailing midwife who has the aft cabin cruiser called “Afterbirth”.
Alternatively, the lazer with P.T.O. written up side down in the side of the hull.
You'm wrong there me 'andsome. They'm called grockles in England, but once you cross the Tamar you become an emmet (ant). You be still welcome though as long as you do bring your money to spend!