this is something i remember doing at school as an easter activity ,using regular chook eggs
what is the best way to prepare the eggs?should i hard boil the eggs?should i try and empty the eggs?what is the best method for cleaning the shell before decorating it?

Hard-boil your eggs with about a tablespoon of vinegar in the water (that way, if the eggs crack, they won’t leak so much). Remove the boiled eggs from the pot.

A really good egg dye to use is PAAS, and I’ve always found it at the grocery store. Cheap. It also comes with little wire egg holders for dipping your eggs. If you don’t get the kit, you can use regular food coloring.

Get several bowls or party cups, one for each color. Hot water mixed with some vinegar will help set the dye on the eggshells, and leaving the eggs in the dye longer will result in darker colors. The acid in the vinegar helps the dye set on the shells. If you’re using the PAAS kit, you’ll have directions for how much water to mix with the dye. If you’re mixing your own colors with food dye, you should have enough to cover one egg in each bowl, and use a LOT of the coloring to saturate the water with the dye.

You can get color effects by dipping eggs into one color, then another. For more fun, you can color on the eggs with crayons. The dye won’t stick to the wax, so you can get some nifty effects that way, too.