Nothing too subversive, but my LAer put my grands names and the year in cursive in a random spot, large enough to see, but not easy to find if you weren't looking for it. The first grand found hers in a couple months (no hint, just gave quilt and waited). The second knew about the first's, so she was looking! Took a couple weeks, but she called to say she found it ! Fun, no effort, and a LITTLE sneaky!