Here is a zipped pack of 11 autotiles that I put together. They allow you to do the mountains a little more easy for the beach, mountain, mine and desert tilesets. There is also an autotile that I made of the rockpile and I think it works quite well.
Enjoy!
KS
Did you put in credits?
I made the autotiles myself today while fiddling around with Adobe Photoshop, so credit is not needed and not required if someone decides to use them.
Cheers,
KS