1.A good cook could cook as much cookies as a good cook who could cook cookies
2.I saw a saw that could out saw any other saw I ever saw.
3.Betty Botter bought some butter, but she said "this butter's bitter! But a bit of better butter will but make my butter better" So she bought some better butter, better than the bitter butter, and it made her butter better so 'twas better Betty Botter bought a bit of better butter!
4.Black bug bit a big black bear. But where is the big black bear that the big black bug bit?
5.A big bug bit the little beetle but the little beetle bit the big bug back.
6.If you understand, say "understand".If you don't understand, say "don't understand".But if you understand and say "don't understand".How do I understand that you understand? Understand!
7.I thought, I thought of thinking of thanking you.
8.RED BULB BLUE BULB RED BULB BLUE BULB "RED BLOOD BLUE BLOOD"
9.I wish to wish the wish you wish to wish, but if you wish the wish the witch wishes, I won't wish the wish you wish to wish.

10.if a sledering snail went down a slippery slide would a snail
11.bubble bobble, bubble bobble, bubble bobble.
12.These thousand tricky tongue twisters trip thrillingly off the tongue .
13.Sounding by sound is a sound method of sounding sounds.
14.You curse, I curse, we all curse, for asparagus!
15.Kacha papaya pacca papaya Kacha papaya pacca papaya Kacha papaya pacca papaya.
16.Double bubble gum, bubbles double.