Travelling poetry bag shops.

Travelling poetry bag shops -
I don't think I've seen one before.
Often I've wondered
How poetry travels,
Steam train or maybe Concorde?
Horse and carriage! Or pony and trap?
Or stowed away on a goods-laden boat?
Would it all be too heavy,
All the letters and ink?
Or would it all simply rise up and float?
It may hover and circle,
Hanging up high,
Watching, resting, waiting.
It might be sent through the post,
But by gold class or second?
It'd probably just be gold-plating.
The attire it sports
Could be classy and light,
And be elegant with, maybe, a hat.
Travelling poetry bag shops aren't real;
Two comic masters invented that.