Neat-o gift for your design-friendly geek!

“PixelBlocks come in a single shape, featuring a peg-and-hole combination for stacking top-to-bottom, and a unique tooth-and-groove combination on the other four sides. The unique shape allows PixelBlocks to be connected in three versatile ways that enable you to build effortlessly in 2-D or 3-D. The blocks themselves are approximately 3/8” (0.9 cm) translucent cubes.”