My kids love doing science experiments, so we decided to bring some reactions to our Easter egg coloring.
Start by making baking soda paint. I put about 1/4 cup of baking soda in 6 containers. Then I added about a Tbsp of water and some food gel coloring (food coloring drops would work too). You want a paste-like consistency. Add more baking soda or water as needed. Paint the eggs with the different colored baking soda paint.
We used muffin tins for this process. It worked very well.
For added coloring, drop food coloring on eggs.
Then put vinegar on the egg and watch the colors explode. (If you want to write messages on your eggs, use a white crayon to write on the egg before you add any paint or coloring.)
You can continue to add other drops of food coloring or baking soda paint to create a new design on an egg.
Every egg will look different and has very vibrant colors.