I have found six masonic counterstamped pennies (I believe five were in the same bag), a new mexico counterstamped penny and a penny with a triangle with the number 15 in the middle of it.
Great finds Mojo! I like the ones with a designed puched right out of the middle of it, I have never found one like that.
I have found Kansas, Texas, one with a little heart, Love, and the one like you have with Kennedy stamped on it.
I have others that I cant remember of the top of my head, I will dig them out and post a picture later today.
Keep up the good work you have a neat little collection there!