Over the years I have had fun with making square eggs. Anytime I can take deviled eggs I will make square ones. You either need several square egg makers or have a lot of free time. I like to take them fishing with me especially if I am fishing with someone new. They can't believe the square eggs. I always take an extra one for them to try. The Square egg maker is plastic, you boil your egg, place it in the container and screw the top down so it pushes the egg into the corners. Let the egg cool in the fridge and remove it from the mold. The real funny thing is even the yoke is square inside. Here is a link to where you can buy the Square Egg maker. I have a half dozen and seem to always be giving one away. Have fun with this one. http://www.happycookers.com/wc.dll/products/divulge/1-15300.html