RE: the Star String block, it's part of the fun - mixing & matching the colors. If someone wanted all 4 corners the same color, okay; all 4 corners different colors, okay too. There would be established colors: the primary colors, red/yellow/blue and the secondary colors: orange/green/purple. A block would have any 2 different colors of those 6 colors. That's not to say a swapper might need to make additional blocks to finish off a top, but that's nothing new, right?
Thoughts??
Jane