Three farmers chat. The first one tells, "I have grown such a big apple that when I put it on a chair, it broke down."

The second one says, "I have grown an even bigger apple! When I put it on a table, it broke."

The third one says, "I grew an extremely big apple. I put it in a carriage..."

The two farmers interrupt, "Did it break???"

"No, a worm got out of it and ate the horse!"

If tin whistles are made of tin...

Exactly what are fog horns made out of?