As every child in Germany knows, before and around Easter, hares are extemely busy, because they have to colour thousands of eggs and to hide them carefully in the gardens and woods, often together with chocolate eggs and chocolate bunnies.
Spoiler warning: Plot and/or ending details follow.
I do not remember at which age I become aware that the eggs my brother and I went searching on Easter morning had actually been coloured by my father the night before. But colouring eggs has been a traditional thing to do ever since in our family the night before Easter.
You just start by hard-boiling a dozen of eggs for about 8 to 10 minutes - best use a large pot, and give plenty of salt in the water to avoid premature breaking of the shells. While the eggs are boiling, prepare cans with the colourant. The dye my father has always been using comes in small tablets, which are dissolved in a mixture of hot water and vinegar.
The boiled eggs are put, still hot, in the colour bath, and let there for about five minutes each. There are several other methods to colour eggs, for example with "natural" colourants from plants, or with colourants for use with cold water. But, as a long experience shows, this procedure really works best and gives the most satisfactory results.
Once the eggs are coloured, you can rub them with some bacon rind to give them a nice, shiny finsish. Voilà!
All that remains to do: hide them! But try to make sure that you will find them again before next Easter.