Inexplicably mimicking him hiccoughing,

A sailor went to sea to see what he could see. And all he could see was sea, sea, sea.

Which wristwatches are Swiss wristwatches?

I thought a thought. But the thought I thought wasn’t the thought I thought I thought. If the thought I thought I thought had been the thought I thought, I wouldn’t have thought so much.

A skunk sat on a stump and thunk the stump stunk, but the stump thunk the skunk stunk.

Susie works in a shoeshine shop. Where she shines, she sits, and where she sits, she shines.

To begin to toboggan first buy a toboggan, but don’t buy too big a toboggan. Too big a toboggan is too big a toboggan to buy to begin to toboggan.

Sheep should sleep in a shed.