Lego Microscope
I know a chem prof who built a Lego spectrometer. <a href="https://publiclab.org/wiki/lego-spectrometer" rel="nofollow">https://publiclab.org/wiki/lego-spectrometer</a><p>Legos are just wonderful.<p>edit: I know nothing about woodworking or crafting any building materials, but I always wish I could perform those types of projects. And whenever some potential project comes up, I think to myself, "but I could build it with Legos."