Growing up as a child one of my prized possessions was my AMT Star Trek Exploration Set — a full scale model kit which included a tricorder, phaser and a communicator. Fanboy Tommy Williamson has done amazing job of recreating this set in LEGO! I really love how the Tricorder has moving parts:
Side note: While researching this story I came across this nice video on the original AMT Star Trek Exploration Set.
Found via brothers-brick.com.