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Old 01-30-2011, 10:12 AM
  #7  
BKrenning
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Join Date: Mar 2010
Location: Lake Wales, FL, USA
Posts: 1,554
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Most of the Kaleidoscope/Wheel of Mystery blocks create an illusion when the light/dark is alternated. No books to buy and many free patterns on the internet. Also, many have few pieces per block so easier to reduce/enlarge.
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