Print out your message using word processing software.
Flip it over and glue it down.
Paste cardboard strips about 1 cm thick over the lettering. I clipped the cardboard in between the fluting on the inside of the "o" to help ease it into a circle.
Let dry overnight. Away from curious hands!
I painted the stamp with regular acrylic paint. It took a few tries to get the cardboard to absorb enough paint to stamp relatively evenly, so don't give up if it doesn't come out perfectly the first time.
I think I'll go ahead and make name stamps for Isis and Electra using a different font, and then maybe we'll make an oversize set of the whole alphabet? Or maybe just imagine ourselves having the time to do that. Ha.