Hard boil the egg the way you normally would. I put it on the stove and when the water starts to boil I pull them off the heat and let them sit for 11 minutes. After that I put it in a bowl of cold water to help the peeling process.
The egg has to go into the egg mold while warm, and then into cold water once in the mold. So I peeled the egg, put it in warm water, into the mold, into a bowl of ice water, and about 20 minutes later I pulled it out and hoped for the best. She came out all right; next time I'll use a smaller egg. But so many details...she's even got whiskers!