The block patterns are designed by Jennifer Ofenstein who has made a full Harry Potter quilt. They are available here for free. There is a LJ community that is testing the patterns. They are 5" blockas and are all paper pieced. Jennifer has just added a video of how this done to the pattern page if you're not familiar with it. It's the same method I used to make these blocks and these.
Here's my latest block.
![](http://farm2.static.flickr.com/1082/1350967365_92c06c37d8.jpg?v=0)