Don, I liked that page you linked to. I used to work in FM radio, in the 70's. Some of the "real life" phrases on the exercise page gave me a chuckle. There are more difficult phrases in ad copy than in many rhyming tongue twisters. My grandmother was a great one for teaching kids tongue twisters - here is one she taught me: A skunk ran up a ladder with a lump of raw liver in its mouth.

Alice