This is the kind of thing the parent means. They're very commonly available. http://m.homedepot.com/p/3M-Orange-Disposable-Ear-Plugs-80-Pack-92800-80-6DC/20269

This is the kind of thing the parent means. They're very commonly available. http://m.homedepot.com/p/3M-Orange-Disposable-Ear-Plugs-80-Pack-92800-80-6DC/202691611 http://m.homedepot.com/p/3M-Orange-Disposable-Ear-Plugs-80-P...