Special Delivery!

Oh what's in this packet? 

It could be a jacket! 

A new tennis racket! 

A nail for a bracket, 

A hammer to whack it. 

A poster?  I'll tack it! 

Some shelving?  I'll stack it! 

A duckie?  I'll quack it! 

A cracker?  I'll crack it! 

A locket?  I lack it! 

A rope?  I'll unslack it! 

A tooth?  I'll de-plaque it! 

A rhyme dictionary? 

I think I'll send back it.