So this is my second instructable, thanx for clicking on it! It is not fully true what the title claims, you do need some materials of course (in fact a lot), I just wanted to emphasize that I had no guitar or anything at the beginning, so it's not a "how to make a big guitar from a small original Red Octane one just by placing the circuit board from the GH controller to a real guitar" type of instructable. Well, maybe it would look much cooler, but I didn't want to sacrifice a real guitar. So I made the body of the guitar and everything from the proper materials and I took the circuit board from a PS1 joy pad. Some wiring and a lot of work and it's done. I'm satisfied with it and I hope you like it too.
This is a video of me playing the GH controller. The Song is called Holy Diver. I'm playing it on Hard. It demonstrates that it is working just fine (every part of it).
Note: I hadn't seen an original red octane controller (nor any 3rd party copies) at the time I made this controller, only on pictures.
Feel free to leave a lot of comments about my project, I'd like to have some response, and if you have any questions about anything according to my project, don't hesitate to ask (but please try to ask things that aren't covered in the instructable! Thanx!)!