Rainbow Water – a St. Patrick’s Day Drink for Kids

Drink a rainbow!  Mix up a silly, colourful rainbow drink for kids to sip on St. Patrick’s Day!

The other night, I thought it would be fun to prepare some rainbow water for my boys.  Not to be mistaken with our rainbow water activity, this one is a a fun, little St. Patrick’s Day drink for my boys.

Rainbow Water for St. Patrick's Day - Happy Hooligans

For your convenience, this post contains affiliate links. 

How to make a rainbow water drink for kids:

I grabbed my Red, Orange, Yellow, Green, Blue, and Violet (otherwise known as purple) food colours, and I mixed up a batch of rainbow ice-cubes.

making rainbow ice cubes

My favourite brands of food colour for kids’ projects:

When I’m colouring food or using food colour for arts and crafts, I use either of the 3 following kinds of food colour.  My favourite are the icing gels because of the vivid, intense colours they produce.

Wilton Set of 8 Icing Colors

McCormick Neon Food Colors

McCormick Traditional Food Colors

I made red, orange, yellow, green, blue and purple ice cubes, and to fill the last 2 sections of my ice cube tray, I mixed together blue and purple to get indigo.  

I popped the tray in the freezer, and fast-forward to today.  Happy St. Patrick’s Day!  March 17th is always extra special at our house because in addition to celebrating all things green and Irish, we’re also celebrating my hubby’s birthday! 

rainbow ice cubes

We had an awesome day celebrating St. Patrick’s Day and the big hooligan’s birthday!  We headed out of town and to a near-by city for an afternoon of laser-bowling.  They turn out the lights, and you bowl with glow in the dark pins, disco balls, neon lights, music playing etc.  It was a first for us.  We’ve bowled before, but never in the dark, and we all bowl fairly horribly, which made it even more fun.  It was a great afternoon.   Then we went out for dinner, and came back home for cake.  In all honestly, I’d completely forgotten about the rainbow cubes, and I didn’t remember them until I went into the freezer to get out some ice cream to serve with the cake!

Woohoo!!  Isn’t it great how sometimes the simplest things make the biggest impressions?  Everyone thought this was the COOLEST water EVER.   Doesn’t it look awesome?  Whip some up!  Your kids will think you’re THE BEST!

Rainbow Water

My advice?  Don’t wait until next St. Patrick’s Day to try this.  Surprise your kiddo with a glass of rainbow on a dull or gloomy day “just because”.  It really doesn’t get much easier than this.  Go on!  Brighten their day!!



Looking for more rainbow crafts and activities for kids?  Check out our:

rainbow collage

rainbow discovery bottles

rainbow wind chimes

rainbow rice

rainbow playdough

painting rainbows


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    • happyhooligans says

      Yes, just a drop or two of food colouring in each bottle. This was so fun! We’ll have to do it again this Spring. The kids loved it!

  1. says

    Is this just food coloring added to water? What “gels” are you referring to? Thanks for your help; I’d love to do this one!

    • happyhooligans says

      You can use regular food colouring drops, Brie, but if you want to know the gels that I’m talking about they’re
      Wilton Icing Gels. If you scroll down the home page of my blog, almost to the bottom (just a little bit under the pic of the Icicle Ornaments in the side bar), you’ll see a section called MY FAVES. The icing gels are listed there. You can click on them, and be taken to Amazon.com to see the details about the gels.

  2. Abby says

    This is totally awesome! I thought of the idea too and googled how to do it. My only question is: What happens when the ice cubes melt??? Do the colors leak and the water become a gray mess?

    • happyhooligans says

      I suppose it would if you let it sit, Abby, but my guys drank it so quickly we didn’t have the chance to find out. :)

  3. says

    This is such a cute idea but when we did it yesterday my kids mouths were all stained blue or purple and still are today. It’s a good thing my husband and I didn’t try any or we would have looked hilarious today. Any tips to avoid this?

    • happyhooligans says

      I would suggest less food colouring Jeanne. My guys didn’t have any staining. It’s strange because if you’d put the food colouring in icing or some other food, I wonder if their lips would’ve been so stained. How many drops did you use? Alternatively, you could freeze different colours of juice. Then there would be some nutritional value as well.

  4. Linda Womack says

    Wow I think that is a awesome idea cause my grandbabies don’t care for water but if I put some color to it they may drink it. I don’t want to put the Koolaid packs and things in the water because of the sugar.

  5. Jan says

    Hi. We would love to make the crystals you showed but in the UK can’t get Borax. Do you know what else would work please?


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