English tongue twisters

She sells seashells on the seashore of Seychelles. 
The shells she sells are seashells, I'm sure.
For if she sells seashells on the seashore, 
Then I'm sure she sells seashore shells.

Can you can a can as a canner can can a can?

Whether the weather be fine, 
or whether the weather be not.
Whether the weather be cold, 
or whether the weather be hot. 
We'll weather the weather 
whether we like it or not. 

How many boards could the Mongols hoard 
if the Mongol hoards got bored?