If you really wish to know what is available, check Allbrands. They have most listed. I have some templates from another company, and these looked tempting, but when I watched a video, some looked too big. I normally don't make over a 12 inch block and some are much smaller.The sizes of the finished piece were not given.
The ones listed on Allbrands show the pattern and the size.
http://www.allbrands.com/categories/3387