Aren't the colours just gorgeous - it is all stitched together with black wool. Some of the larger buttons have smaller ones stitched on top - I just love it!!
While I was away on the weekend I picked up this lovely bag of mixed buttons to try to make a necklace myself - I also happened to pick up a cute little cardi in this gorgeous green colour too!
I'll show you when I get it done - maybe I'll make some to give to friends for birthday presents!