Easter Egg mystery

Exploring the web is always something I lose patience with as heavy graphics slow things down and graphics are popular. Still, a quick look before I back up to a faster page can provide a lot of information. Today I looked for egg dying methods and opted for onions, but a quick scan showed me lots of options for that, too, including free floating onion skins, different kinds of onion skins, holding them onto the egg with rubberbands, coffee filters, old nylon knee highs, and cheese cloth or fabric (it will dye the fabric too but may not be colorfast). I also came across references to adding shapes and colors with flowers and parsley tyed on the same ways. I'll have to try the parsley sometime, especially.

I opted for free floating, not knowing my family's reaction to seeing nylons in the pot, the kind of onions we had in the house (though the skins are rather pale) and have achieved subtle marbling and pale but pretty ochre for a color, and a question about how eggs are handled before they reach my house. About half the eggs I dyed have two very neat stripes of white circling them at about the third and two-thirds points of the height if you stand the eggs on end. It's kind of the effect, in reverse, I might expect of rubber banding if one were very neat and didn't cross the two rubber bands, but what would cause it in the trip from hen to kitchen? And do I want to know? Anyway, it looks like I went to a little extra work to decorate the eggs, so I'm not complaining.