We used purple cabbage to make purple dye (the eggs turn blue), brown onion skins to turn the eggs a dark rusty orangey colour and carrots to turn them pale orange (total failure, the egg kept on being white).
I wanted to make prints of leaves/flowers while the eggs cooked, so I cut a pair of old tights to keep the leaves and flowers in place and we boiled the eggs inside the bits of tights (with cord on both sides).
I was also planning on making some patterns with the tape, but gave up on the idea as it would be too complicated for the little ones.
Will you dye some Eggs for Easter? Let me know if you would like details of how we did it, didn’t manage to take photos of every step but am happy to share!