Personalize Police Department Challenge Coins With NFC Chips & Custom Designs Gray Water Ops now carries a huge range of challenge coin design options specifically for police departments and units. The veteran-owned business can create original enamel or metallic challenge coin designs with a range of personalization options. The coins also feature programmable NFC chip integrations, which can link to department websites or charity drives, run commands, and more. These chip integrations are housed in solid bronze casings, which can be customized with reeded edges or beveled for a more three-dimensional look. Other customization options can be explored with the Gray Water Ops custom design service, and their team can even create unique designs from the ground up based on your feedback. You can also upload your own designs and optionally transform them into a 3D rendering that can then be carved onto the coin face. Order today to show the members of your department the appreciation they deserve. Discounts are available on select orders, with additional deals for bulk orders as well. Find out more at https://GrayWaterOps.com