I'm looking for some sort of project to do this summer. I was looking around, and I heard about making a small, home-made cyclotron, but it sounds like materials would be hard to get and expensive. So, does anyone have any examples of a great, preferably time-consuming project that I could complete over the next two months? Something about particle physics, or electromagnetism, waves/optics, or even just a fun contraption to build to study/demonstrate classical mechanics would be cool. I'm a third year Math/Physics double major with a minor in computer science, so I have some amount of skill/experience and would prefer to tackle a more difficult and interesting project. Preferably a project that wouldn't be too expensive. Thank you, any suggestions and ideas would be greatly appreciated (especially if you can explain or give a link to an explanation of how to do it).