Beets will get you a light pink color. Grate 3 medium beets and combine them with 1 Tbsp of white vinegar and 1 1/2 cups of water. Bring them to low boil on medium heat and simmer for a few minutes. Strain and add beet juice to a bowl with already cooked eggs, covering the eggs. (More eggs will require more mixture.)
Onion Skins will give out a brown color. Peel the outer, dry skin off of 6 red onions and place them in a small pot. Add enough water to cover them (about 2 cups). Simmer for about 10 minutes and strain water into a bowl. Mix with 1 Tbsp of white vinegar and add hard boiled eggs. Make sure that eggs are covered.
Turmeric will give you yellow color. Bring 1 1/2 cups of water and 1 Tbsp of turmeric to boil. Mix well and add it to the bowl with hard boiled eggs, covering them.
Blueberries will give you a beautiful blue color with a pattern. I call them the Earth eggs. In a small bowl, combine 1 1/2 cups of blueberries, 2 Tbsp of water and 1 Tbsp of vinegar. Cook on medium heat until blueberries get soft, about 5-7 minutes stir occasionally. Mash them with a potato masher and add the blueberry puree to the bowl with hard boiled eggs, covering them.
**Keep the eggs in the dyes for at least 4 hours. You can even do it overnight, just place them in the fridge after a few hours on the counter.**
Notes
Note: nutrition is only calculated for the hard boiled eggs.