The Free Universal Construction Kit is a set of downloadable models meant for use with 3D printers. The brick patterns allow interoperability between ten popular construction toy brands (i.e. Lego, Tinkertoys, K’Nex, etc.).
Ulises Farinas has created a sort of sci-fi-pop-culture take on “Where’s Waldo”. Link below is to a BitRebels article about the illustartion; here’s a link to a big version of the whole image.