There is a pattern for a Diamond Log Cabin table topper that measures 46 inches from point to point. It is in the Fons & Porter's Love Of Quilting magazine from Nov/Dec. 2010 if you have that one. All you would need to do is cut the slit and circle for the tree. The table topper is under "Christmas Memories"by Diane Tomlinson. Don't know if this helps but I am thinking of doing it next year for my tree.