Dave, as someone who believes in liberty, I would encourage you to put as many pins, patches, trinkets or raccontails, on YOUR jacket, as YOU wish. I for one admire your individuality. I do not have a bunch of shooting jackets, I only have one. I "Decorated" it the way I wanted to.
Now since you did not ask for my opinion (or anyone else's for that matter) on shooter fashion sense and your question was about smaller patches, I will attemp to point you in the right direction.
You may try to PM Old Grunt. He has done t-shirts and decals in the past. I am not sure if he has done any patches.
However here is a link to state rocker patches.
http://www.thecheapplace.com/categories/Embroidered-Patches/State-Rockers/Now, I know that most people will tell you you should put these on your sleeve. Or that, if you should put patches on your jacket, you may look like this or that. I would go so far as to say you will still look like you.
Forget that and put them any place on your personal property. Freedom. Liberty.
It is your shooting Jacket, do what you like.
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