Toy construction sets like Legos and Krinkles can provide a great creative outlet for people of all ages, but using their own connector types and configurations, most of the systems work well within their own environment. Hoping to change this is the Free Universal Construction Kit, a set of 80 blocks designed to let 10 different building systems work well with each other, from Legos to Duplos, To Gears! Gears! Gears! and Krinkles. Even better, the kit, made by F.A.T. Lab and Sy-Lab, isn’t a physical product in itself; it;s a set of 3D models fit for use with Makerbot and other 3D printer systems. The files are available for download on Thingverse right mow, and the whole project appears to be a great way to encourage creativity and get additional output from the things like Lego and the like.