You build with LEGOs and you build with Tinkertoys, but you can’t build with LEGOs and Tinkertoys – until now! F.A.T. Lab and Sy-Lab have created a set of 80 universal connectors that “enable complete interoperability between ten popular children’s construction toys.” (See the F.A.T. Lab site for a complete list.) You can’t buy the Free Universal Connection Kit anywhere, but you can download the free designs as a set of 3D models in .STL format. If you have your own 3D printer, you can print out the connectors you want, or you can have them printed at various commercial 3D printers. What are you waiting for? That plastic block/stick/log figure is waiting for you to build it!