They only have one pair of trunks.
We don't talk about it...
motorcycles don't have trunks
Wanna go swimming?
If you know that one, try this one: Why do seagulls fly to the dump
You might get a hole in one.
A pair of slippers.
Sheep. Why do elephants have trunks? Sheep don't have strings.
Depends on the size of the pieces.