Have guests write their names on quart-size Ziploc freezer bags with a permanent marker.
Crack 2 eggs (only 2, large or extra-large) into each bag, shake to mix.
Set out a variety of ingredients such as shredded cheeses, chopped ham, chopped onion, chopped green pepper, chopped tomato, hash browns, salsa, etc.
Everybody adds they’re own ingredients to their baggie of eggs, shake to mix again.
Squeeze air out of bags before zipping.
Place bags into rolling, boiling water for exactly 13 minutes (I’ve tried playing with the time – don’t bother … nothing else works). 6 to 8 bags should fit in a large pot. Use another pot for more, don’t crowd.
Unzip each baggie and slide omelet onto each person’s plate.