Click the link above to download your free PDF pattern. You can print it out on pieces of A4 paper like tiles and stick it together to make a full size pattern.
All my free sewing patterns are made to fit a UK size 12, but can be easily adjusted at key points to go larger or smaller. Have a look at the Making a pattern fit page for how to do it.
Have a look at the post on my blog for some basic instructions on how to put this together and ideas for fabrics.