DIY Unicorn Rainbow Party

It can’t get more fun than a DIY Unicorn Rainbow Party! Our oldest daughter is having a combined 6th party with her friend this year and the theme, you guessed it, Unicorns & Rainbows. This magical fun theme is easy to achieve, after all almost anything goes with rainbow! We have your invites, cake, food, games, and party favors here so just pop up some rainbow streamers and balloons to complete your DIY Unicorn Rainbow Party.

DIY Unicorn Rainbow Party

DIY Unicorn Rainbow Party


It all starts with the invite and these two will certainly get everyone excited about the approaching party.

This has got to be the most darling unicorn invite around. Click here for to get the free download. 

Unicorn Mask Invite

These invites will get everyone in the party spirit. Click here to get the free download. 

Cake Inspiration

Because every party needs a cake! These cakes may look complicated but with some spare time and a little patience, you can make one of these beautiful cakes.

1. Dome Rainbow Unicorn Cake


Using a dome sphere tin creates a unique shape to this cake. The rainbow is simple to make, just watch the video above. While there is no tutorial for this cake it is easy enough to figure out. This cake provides a good alternative to a unicorn head cake. Source here. 

2. Unicorn Head Cakes

Our simple creation, fondant-covered base with a tasty frosting mane. This was easy to make and the frosting flowers are perfect to cover any imperfections in the fondant. 

On a base of edible glitter sits a stunning unicorn head. This fantastic tutorial explains in detail how to make each element of this unicorn cake.

Another great tutorial that includes a video. The video shows everything from baking the cake through to how to pipe on that fondant mane.

For the ultimate Unicorns & Rainbows party put your unicorn head on a sprinkle base. Learn how to sprinkle a base here. Unicorn cake photo source here.

For an alternative to piped on hair try this rainbow fondant hair. Or keep it super simple with candyfloss hair. 

3. Rainbow Horn Drip Cake

This cake is a great example of working a rainbow and horn together. Source found here.

Rainbow Food

There will be no hungry tummies with all of this yummy food! Read about these 9 rainbow party foods here. 

Unicorn & Rainbow Games

Keep kids entertained with these fun games.

Unicorn Pinata

The first is a store-bought pinata that has had a make-over and now its a unicorn! This is a great tutorial for if you are not wanting to make a pinata from scratch. Alternatively, check out our unicorn pinata which is made of two balloons.

Unicorn Poop Slime

Be brave and have a unicorn poop slime table or make some as party favors to take home. Follow this link to see the full tutorial. 

Rainbow Trail

Follow the rainbow yarn to find the treasure at the end of the rainbow. Follow this link to find out more. 

Rainbow Rocks

A simple game that kids love! Paint enough rocks so there is at least one per child. Hide and let them find. To make the game more exciting for older children paint one or two in a different color and those rocks win a prize! This game also featured on our DIY My Little Pony Party. 

Treasure Hunt

This unicorn treasure hunt will keep the kids busy. Find out more here. 

Party Favors

Rainbow Seeds

Rainbow seeds are adorable, affordable and easy to put together with this great rainbow seed template. 

Unicorn Poop

Looking for something to make the kids giggle then try this adorable Unicorn Poop Printable. Click here to get these free printables. 

Unicorn Spa Jar

A unicorn jar filled with all sorts of spa goodies. Click here to read the full tutorial. 

Extras To Buy

If you are still after more unicorn goodies then check out these fun unicorn bits and bobs available to buy.

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Thank you for stopping by. We hope you found something useful in this DIY Unicorn Rainbow Party Guide!

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  1. Margaret@GrowingPlay March 7, 2018 at 3:46 am - Reply

    Wonderful ideas!

  2. Danielle July 29, 2018 at 4:50 pm - Reply

    Thank you for the rainbow seeds printable!!

    • Kelly Sanderson August 3, 2018 at 6:12 pm - Reply

      I’m glad you liked it!

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