I would hazard a guess the sharks tooth washed up on a beach in the Gulf of Mexico, the one holding it is, well, just washed up really.
I see you are keeping yourself amused whilst the poor builders are toiling away outside .......Without a brew.
Giv, builders! On a Saturday! In Devon! Are you mad! Sinewave, the shirt's not what you think, but you're right, as transport it is pretty slow. Just like a repsol.