Irrationally comparing someone to a mass murderer is one thing, but when you call me a sheep, you, sir, have gone too far.
Anyways, here's what I was able to find. It's not as great as I hoped it would be.
The Bostonians in Distress, 1774 by Philip Dawe

Benjamin Franklin and the rattlesnake were not the only celebrities of the time. As you may have noticed, the Liberty Tree of Boston and her noose, as made famous in the depiction of the tar and feathering of a Loyalist, makes her comeback, with the cage hanging from said tree and noose.
"The Bloody Massacre", 1770 by Paul Revere and Henry Pelham

The innocently portrayed colonists stand in awe that they could have done anything to instigate such violence. Meanwhile, the heartless British drown the town in gun smoke and bullets. Probably far more effective than the first image, as it shows Americans as innocent yet not as foolish, this cartoon and accompanying poem deliver a blow straight to the heart.
Thomas "Here Comes the" Paine, with pamphlets so patriot you'll pray for pardon

Benjamin Franklin actually brought Paine to America, thus making his life meaningful for the first time he had ever experienced. America allowed Paine to become more than a writer; he also served in Washington's army. He continued to write after the war on many different subjects.
America: Birth of an Ego

Here's our friend the rattlesnake. Now that's he's in one piece, he's developed some sass and swagger. Considering all the necessary foreign aid America received, it was probably a bit obnoxious to everyone else when this cartoonist bragged America could take on even more British troops.
Federal Superstructure

"News for America, or the Patriots in the Dumps" 1776



"The Horse America, Throwing His Master" 1779

Silliness and sass aside, sir, America had been bucking for years. Now, however, is when foreign aid came, and things started to look up for that crazy horse of ours. Oh, and the fat guy is George III.
Sources: http://www.loc.gov/exhibits/british/brit-2.html
http://www.mccsc.edu/~jcmslib/silver/amrev/paineweb/index.htm (from pages around site)
http://www.1776mag.com/in-the-eyes-of-the-enemy-the-american-revolution-in-british-political-cartoons/
http://www.earlyamerica.com/earlyamerica/firsts/cartoon/columns.html
WHAT DO YOU THINK OF YOUR PRESIDENT NOW, SHEEPLE?!
