My last hobby is sewing and I'm doing lot of research throught blogs looking for nice patterns and things to made. Actually I found loads of amazing blogs, the net is full of really ceative women! Anyway I discover another good tool: the Victoria and Albert Museum has created an online patchwork pattern maker.
You can upload your image, pictures and the tool gives to you the right pattern so you'll be ready for cross sewing. Here below the web page I did with my image! You also can download the pdf of it, is not it really cool? And trust me very very easy.
Have fun with this tool by V&A!