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A Modern Rainbow Art Party (Kids Birthday)

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modern rainbow birthday party ideas

We’ve featured lots of rainbow parties here on HWTM over the years, but this is the first one that I designed myself. I wanted it to feel fresh, modern, vibrant, and HAPPY!

Colorful balloons, streamers, and paper were my key design elements. I also infused a bit of “art party” in here, with coloring placemats, art-inspired party activities, and a party favor/treat station that literally looks like a paint palette! As usual, printable paper designs played a big role in this party – from signs and labels to the DIY birthday hats. Click here to download the printables for FREE! :)

Some of my favorite details to look out for:

  • “Double Rainbow” birthday cake decorated with chopped Rainbow Twizzlers + sprinkles
  • Guest of honor chair surrounded by colorful balloons and rainbow paper garlands
  • “Rainbow Skies” party punch with vanilla ice cream “clouds” and rainbow fruit
  • DIY “Birthday Cake” table centerpiece with balloon “candles” and tissue fringe “frosting”
  • Paint palette inspired favor table with mini paint bucket favor tins

printable kids birthday party placemats

Coloring Placemats

Coloring is always a great way to keep little ones entertained! These cloud-shaped placemats come in 2 designs and are included in the free printables. Note: The placemats are formatted on 11×17 paper. I printed them as black & white engineering prints at Staples. You can fit 2-up on their 18×24″ paper, which makes them less than $1 each.

Guest of Honor Chair + Photo Backdrop

Rainbow balloons, circle garlands, and honeycomb balls make for a happy-go-lucky photo backdrop and gift-opening spot!

rainbow party balloons - guest of honor chair

For the circle garlands, I used craft circle punches to cut circles from colored card stock, then sewed them together with my extremely limited sewing machine skills. You can also use hot glue to make the garlands, as demonstrated in this other rainbow chair design. I used 1.5” circle punches for the smaller garlands shown here. A combination of 2” and 3” circle punches were used for the big ones.

Rainbow Cake

You don’t have to be a pro baker to whip up a fun birthday cake! This playful cake topper features paper balloon designs hot-glued to bamboo skewers:

rainbow party cake + printable cake topper

To decorate the cake, I used kitchen shears to chop up Rainbow Twizzlers into giant “sprinkles”. These provided a nice size contrast to the regular rainbow sprinkles.

For the inside of the cake, I used a rainbow cake boxed mix which produced beautiful, vibrant colors but didn’t rise much at all. So… I used another box of cake mix (in white) to bake an additional layer to go between the rainbow layers. This gave the cake some much needed height plus a happy silver lining: a “double rainbow” inside the cake! ;)

rainbow party printables

A Colorful Kids Table

The place settings on the kids table featured the coloring placemats that I mentioned earlier, crayon packs, birthday hats, and kazoos. What’s a kids party without lots of NOISE, right? ;)

rainbow party kids table and coloring placemats

I also hung garlands on the chair backs and designed an artsy “faux birthday cake” centerpiece, which I’ll post a tutorial on later. In a nutshell though, the centerpiece is made from floral foam bricks, crepe paper, and tissue fringe + balloon and wood dowel “candles”. 

Rainbow Confetti Popcorn

Kids will go crazy for this sweet and colorful treat! To make it, add approximately 1/2 cup of white melting chocolate per 8 cups of popped kettle corn or regular popcorn. Pour the melted chocolate on top of the popcorn and toss gently to coat. Spread the popcorn out evenly on a baking sheet, then sprinkle generously with rainbow sprinkles. Let dry for 2-3 hours.

rainbow confetti popcorn

Rainbow Party Drinks

The signature drink was a “Rainbow Skies” Party Punch with blue fruit punch, vanilla ice cream “clouds”, and colorful chopped fruit.

rainbow ice cream punch

The punch was served in clear cups that I embellished with skinny balloons (the twisty kind you use to make balloon animals).

rainbow party drinks

Colorful sparkly craft poms were the perfect ingredient for fun party straws!