Can someone suggest any poems that somehow encapsulates the sentiments of Huckleberry Finn" by Mark Twain?
I know of none, but one process you can use that MIGHT work is this:
Go to http://www.quoteland.com and wander around until you find something that resembles something major from ...Huckleberry Finn. Then look at the reference; where did it come from? Search for that work, if it's a poem, and see if it's useful.
I know this is a rather long and roundabout way, but if no other help comes along, it might work for you. It would also work better if you know which sentiment (or sentiments) you're looking for and use the Quotations by Topic section.
=)