Acrylic Jewelry is great for body piercings. Also it is UV reactive, meaning the color will change, or glow under blacklights commonly used in most clubs.
It is especially useful now, as it will not set off the metal detectors at the airport, or schools or anywhere else for that matter. Even though it is a regular piece of body jewelry that is worn all the time just for its look, or its light weight, it is also commonly used as a temporary replacement for your regular jewelry during hospital visits for surgeries and like that. However it has metal threads so it is Not Suitable for tests such as MRI's.