Frugal science has brought us the Lego microscope and foldscope
Source: German scientists built a high-resolution microscope out of Lego bricks | Ars Technica Except for the lens salvaged from a smartphone, the Lego Microscope is built entirely out of Lego bricks. All of the instructions for creating your own are available in several different languages. The scientists had success with their creation with students…