Square Eggs

In my youth, there was once a magazine with a similar gimmick. A machine that makes square eggs.
I wanted to revive that.

Simply insert the base plate (with the heart up or down). Then place a hard-boiled egg inside and the top plate with the pin afterwards. If necessary, I have also included a neutral plate, if the closure

is in an unfavorable position.
Then press everything down with the stamp and close it with a twist.
After that, put it in the refrigerator for a few hours.

Square eggs are certainly an eye-catcher at any party.
Also for kids who have such an egg in their lunchbox.