The deviously puzzling Sandfield brothers, Robert and Norman, designed their Salt and Pepper Shakers to exchange at IPP 22 held in Antwerp in 2002. 

Thomas Cummings has been making puzzle boxes for his family and friends in his Georgia workshop for years.  Some recipients of his handiwork have apparently deserved particularly devious designs, and Thomas seems to relish the opportunity to inflict his puzzle passion on the willing.