Step 1: Materials!
Plastic Ninja Stars- I found some at my local dollar store in the kids section. They usually have a plastic ring around them so no one gets hurt. I got three stars and a knife for a dollar! What a deal!
Aluminum Tape- Very strong, and very shiny tape. I prefer it over duct tape. I'm not sure where to get it, but try Home Depot or some other home improvement store.
aluminum tape is often found in auto repair stores sold as trim, tough some kinds can be found around heating and plumbing sections of hardware stores. Just, you know. FYI.)
Dremel, or something else that can cut plastic, like a saw.