Place a large-sized egg in cold water, bring to the boil. Once the water is boiling, simmer on low heat for 5-7 minutes. Remove the egg, carefully peel away the shell, and put the egg inside a slightly wet egg shaper. Click the egg shaper shut. Put in the fridge for 10-15 minutes, or if you prepare the egg the night before, just keep the egg in its shaper in the fridge overnight and open it in the morning.
I've also read instructions where people put the egg shaper in the freezer - I've not tried this, but I guess the cooling principle is the same. If your eggs are too small for the shaper, you won't get a complete shape - like my ear-less bear above.
A car-shaped egg!