Tongue twisters

Tongue twisters:
Just try this.............
~A pack of pesky pixies.
~Poor pure Pierre.
~A box of mixed biscuits, a mixed biscuit box.
~Sixth sick sheik's sixth sick sheep.
~The sixth sick sheik's sixth sheep's sick.
~Six slippery snails, slid slowly seaward.
~You know you need unique New York.
~Shave a single shingle thin.
~Smelly shoes and socks shock sisters.
~Bad money, mad bunny.
~Ken Dodd's dad's dog's dead.
~Six sick hicks nick six slick bricks with picks and sticks.
~Imagine an imaginary menagerie manager managing an imaginary menagerie.
~How can a clam cram in a clean cream can?
~I slit a sheet, a sheet I slit, upon a slitted sheet I sit.
~Round and round the rugged rock the ragged rascal ran.
~Stick strictly six stick stumps.
~Barbara Babcock blushes brilliantly.
~She should shun the shining sun.
~Each Easter Eddie eats eighty Easter eggs.
~A fat-free fruit float.
~Twelve twins twirled twelve twigs.