I have used a few layer cakes and have made a very easy top by sewing the squares together randomly and used the left over ones to make a sash and on the back as the backing fabric wasn't as wide as the top I had made. Click image for larger version. 

Name:	Layer cake quilt.jpg 
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ID:	63904Click image for larger version. 

Name:	Layer cake quilt back.jpg 
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ID:	63905