Here's a couple of tongue twisters i know. How fast can you say them and what others do you know.
I slit the sheet - the sheet I slit - and on the slitted sheet I sit.
Try to keep repeating the phrase "Red lorry, yellow lorry"
She sells sea shells on the sea shore !
Six slippery snails, slid slowly seaward.
I'm not a pheasant plucker,
I'm a pheasant pluckers son.
And I'm only plucking pleasants
'till the pheasant plucker comes.
Silly Simon's sitting in a **** shine shop.
Where he sits he shines, and where he shines he sits.