A Dutch quilter is offering a free Celtic BOM. So not something you can complete 'now', but may be you like to follow it?
http://craftluv.blogspot.com/search/...c%20BOM%202011
and the 2nd block
http://craftluv.blogspot.com/2011/02...imbolc_01.html
(there's an explaination of each blovk, not just in Dutch, but english too)