The first tongue twister which i used to practise during my school days was "She sells sea shells on the sea shore. The shells that she sells are sea shells I'm sure.".Thanks vijay for making me remember my school days.
:)
"Mr. See owned a saw and Mr. Soar owned a seesaw. Now See's saw sawed Soar's seesaw Before Soar saw See, Which made Soar sore. Had Soar seen See's saw Before See sawed Soar's seesaw; See's saw would not have sawed Soar's seesaw. So See's saw sawed Soar's seesaw. But it was sad to see Soar so sore just because See's saw sawed Soar's seesaw."
I guess no one could understand when someone read this.