Did you find the one that had two of the same fabrics in it, in two places?
That is what happened after I shuffled the deck, and before I figured out how to add fabric to a piece that had been too small, that I didn't know was too small before I started shuffling ... when I came to the second piece that was too small, I put it on the bottom of the whole pile ... viola! two of the same fabric in one block ... when I came to the third pile that had the same problem, I just left it, figuring if nothing else, I could use it as seed on a doll quilt or something ... and, then I came up with the jeery-rigging (is that how you spell that word?) ... but, I have looked and looked, I do not find any that are exactly alike. Keep in mind that even though I didn't have fifteen pieces in each stack, I only had ten stacks to shuffle, I shuffled every one of them, and ... it worked - - I do not have any two that are exactly alike ... some have fabric another doesn't have, but ... you get the idea <g>
And, I am seriously just considering turning the blocks on each other ... the sashing would not add to the mystique I am thinking .
Have a good time, kids! <wave>