No, it’s not actually a real thing. BUT, at BTJ we are working on a project similar to this to get Scripture into the hands of persecuted believers in the underground church. Part of our mission is to develop new technology like this to equip these believers with God’s Word in disguised ways.
Please pray for this project, and many others like it!
What a lovely and ingenious idea for sisters in creative access countries! Go for it! And more!