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Magic Rainbow Rocks For St. Patrick’s Day

I first published this post two years ago but thought it might be timely again with the upcoming holiday, and with everyone home with their families. Hopefully you have these ingredients or can get them easily!

I had another epic weekend in New Jersey, and it was very rainbow filled.

These Magic Rainbow Rocks are easy to make, and each one has a big surprise inside! Perfect for St. Patrick's Day, or all year long!

My sister was throwing Parker a second birthday party, AND my Aunt came up from Orlando to go to the party and meet the baby, AND my other sister is due with her baby any day now. AND I got to see all the cousins, except for the not-yet-born one. While there, my mom talked about a friend who said his favorite season is “The start of every single one.” And I can really get down with that one. Even with winter hate, the start of winter is pretty tinsel and light-filled. Scarlet then said, “Remember when my favorite holiday was St. Patrick’s Day? I think now my favorite holiday is every next one coming.”

I can get down with that one too.

I’m enamored with St. Patrick’s Day with its rainbows and gold coins. Lucky Charms and corned beef hash. Above all, the love and the light and the HOPE of this time of year. Even with a winter storm warning tonight. Even with a case of the Mondays. When we’re at my parent’s farm, we do projects. I don’t yet have photos from the amazing project my kids did with my mom yesterday – while I showered and read and generally relaxed – but I do have photos of another favorite project. You can do this all year long, but I’m feeling festive today. Let’s turn milk green and make Magic Rainbow Rocks.

Magic Rainbow Rocks


Baking soda
Plastic spoons
Food coloring
Plastic gold coins


1 – First, gather several bowls. We used disposable bowls, but you can use non-disposable if you wish. Using a plastic spoon, put 5 spoonfuls of baking soda into each bowl, one for each color you would like to make.

2 – Then, using the same plastic spoon, add 4-5 spoonfuls of water into each bowl with the baking soda.

3 – Next, mix the baking soda and water mixture well. You do not want the baking soda mixture to be runny. It needs to be on the dry side, but still wet enough to mold into a shape.

4 – Add one drop of food coloring to each bowl to create different colors of baking soda mixture. Mix well to distribute the coloring evenly in the mixture.

5 – If any of the mixtures in the bowls are too wet, simply sprinkle in some additional baking soda a little at a time until it forms soft crumbles that can be molded into shape.

6 – Place a little of one color of baking soda mixture in your hand and form a small flat pancake. Top it with a plastic gold coin, and then use another bit of the same color of baking soda mixture to cover the coin up, and form the mixture in your hand into a ball that is surrounding the gold coin.

7 – Repeat step 6 until you have magic rainbow rocks in each color you wish to make.

8 – Place the rocks on a tin foil lined plate and place them into the freezer for at least 1 hour, and up to overnight.

9 – When you are ready to use them, remove the magic rainbow rocks from the freezer, and let little ones drop them into a bowl filled with vinegar. They will get to see a magical reaction, and then a gold coin surprise will appear!

These Magic Rainbow Rocks are easy to make, and each one has a big surprise inside! Perfect for St. Patrick's Day, or all year long!

These Magic Rainbow Rocks are easy to make, and each one has a big surprise inside! Perfect for St. Patrick's Day, or all year long!

Love rainbow crafts? Check out my Rainbow Wand Craft too!

So, would you make these Magic Rainbow Rocks?

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  1. At first, I thought this post was about magic rainbow socks, I thought wow, I could get down with that, too! But Magic Rainbow ROCKS reminds me of the rocks I used to paint with my mom, and how this is now clearly making a comeback and how happy I am about that 🙂 What a fun project to do with the kiddos! hope you had a wonderful time in Jersey with your family, Tamara, and hope tonight’s storm doesn’t affect you too much! YAY for winter, right? 🙂 XOXO

  2. Oh I love the start of every season being a favorite! I can so relate as I do love the start of each, even the ones I don’t love as much (cough – winter). This looks like a wonderful project! cute for a centerpiece idea too!

  3. We are most definitely twins as I absolutely love anything to do with St. Patrick’s Day. This project is so cool and now got to see if I can try here. And yay to Parker’s birthday party and getting to be with all the family, too!! 🙂

  4. OH MY GOODNESS! This is so very, very cool! I have got to do this! the question is, do I do it first without them but then included them in the activity later so that they can try making some?! Ohh – such fun!

    PS – Sometimes I wish I were Irish. St. Patty’s day is so much fun – I like to celebrate but I wish I could have that “Irish pride” on St. Patty’s Day too.

    Wishing you a lovely week!

  5. This is so fun! I’ve been getting more hands on with the boys lately so I appreciate you sharing this awesome crafting project for St. Paddy’s Day!

  6. How neat! I love these colors too. I’ll have to make these with my kids soon. It’s Spring Break and they tend to get bored. Normally I tell them to read a book, but maybe I’ll surprise them and say, “Let’s make some rainbow rocks!”

  7. My kiddos would definitely love making Magic Rainbow Rocks. My daughter was just talking about want to do something for St. Patrick’s Day. This would be a fun way to celebrate the holiday.

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