The pictures here were obtained from Wilkepedia. I have not tried to preserve eggs in any other fashion except my fridge, so...this was of interest to me! The photo above is a Pickled egg! They are made by first boiling, then putting the eggs in vinegar, salt, beet juice, and spices. It would look pretty for the holidays! Pickled eggs made in this fashion, following a specific recipe will last up to a year without refrigeration!...I don't know if I would be that brave to try it, however!
A "Century Egg" can be seen above. After looking it over, I bet you would BELIEVE it, wouldn't you?! These eggs must be coated in clay, wood ash, salt, lime, and rice straw for several weeks or months, depending on which method is used. The egg yolk becomes a dark green, cream-like substance with a strong odor of sulfur and ammonia, while the white becomes a dark brown, transparent jelly with a comparatively mild, distinct flavor. Yummmmmm! - - NOT!
If anyone tries this, send your recipe and pictures, and include the address of the hospital you are staying in - I'll send you a 'get well soon' Corgi Greeting Card!!