Hi, My bike is loud and I wan't to get earplugs but the disposable kind don't work for me. I have heard about special ones (musician earplugs??) that are molded to a persons indivudual ear. About $200 apparently, I just need where you get them and if some are better than others and any tips and feedback from people who use them would be great. I'm in Wollongong but I work in the Shire if that helps. Thanks!