Acrylic Jewelry is not only popular for their colors, there are other great reasons to wear acrylic jewelry. It is especially useful now, as it will not set off the metal detectors at the airport, 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 tests, such as MRI's Mammograms, Cat Scans, etc.