I was looking for some diamond templates for English Paperpiecing over the Internet (because I didn't want to make a trip to town) and need one to do some leaves on some placemats and mug rugs I found a pattern for. Anyways I ran across this site for free templates.
www.incompetech.com/graphpaper/diamond
Thought others might be interested to, it's a free grid paper for many different templates actually, I was able to find all the Hexie, and diamond sizes I needed in PDF and printed them out on card stock. Tey also have tumbling block, circular, triangle and many others. A few years ago I had started a Hexie quilt and had lost the email for the Hexie template. Hope it helps someone else.