ANSWER:
character vs. self conflict
It indicates that Huck frequents places perhaps grocery stores where the conditions are not sanitary what with "sickly eggs and rotten cabbages and dead cats" in other words, Huck cannot afford to frequent fancier shops or fancier homes because he is poverty stricken and used to such sights.
Dear Mrs. Trechane.
After reflecting on my actions and the results they caused you, I humbly decided to write this letter where I acknowledge my mistake, I apologize to you and say that I am determined to accept the consequences of my actions.
I don't want to justify my actions, or try to take my guilt away, but I want to be as direct as possible when I say that I want to reach your forgiveness and not repeat my wrong acts. I will look for you, to give you my excuses personally and hope that in the future, we will be able to work together again, where I promise that I will be a better person.
Graciously,
Jake.
The prepositional phrase comes at the end of the sentence: in one hand.
Here, the preposition is "in" and the entire prepositional phrase is "in one hand." This phrase is describing the location of the rattle.