Review on 🕵️ Invisible Blacklight Christmas Thanksgiving by STENDA: Enhancing Searchability and Visibility by Brandon Christianson

Due to our upcoming wedding, my future wife and I wanted something to discreetly track our invitation reply cards. We read on the forums that some people forget to put their names in, and then the bride and groom wonder who answered. These pens fit perfectly. We were able to number each card and match it to an Excel spreadsheet. Our guests will never know there is anything there and we have additional insurance. I'm sure kids will enjoy using them too. Heck, we're in our 30s and now we're texting each other "secret" notes in random places lol.