My RAT 7 broke recently and I needed a replacement mouse until I got a new gaming mouse. So I bought a cheap one off, of amazon, not expecting an amazing device. When I got the mouse (picture below) the only thing I liked about it was the grip, nothing else. The scroll wheel didn't even work. So I decided to mod it into something that I could use. I forgot to take photos of the early stages of the mod, so its going to look half done already. So far I've converted it from a wireless mouse into a wired one, sort of. I plan to do a firewheel mod as well but with a different colour led and paint the case. 

Here is the circuit of the mouse with the conversion