DIY rainbow valentine box

This design is for that child who when asked what their favorite color is exclaims, “the rainbow!” (They may or may not be future Hallmarkers.)
One of the best things about this rainbow valentine box is that you can customize the colors however you want. If your kid wants nothing but shades of purple in their rainbow? You can totally make that happen. Get the details, including the free printable, below.
Inspired? Create and share by tagging @HallmarkStores.
What you’ll need:
- Rigid cardboard or paperboard (like cereal boxes)
- Single-face corrugated cardboard or paperboard
- Scratch paper (at least the size of the rainbow you’re making)
- Craft paper or grocery bags (optional)
- Tissue paper, pom-poms or cotton balls for clouds
- Craft knife
- Cutting mat
- Glitter
- White glue
- Pencil
- Glue stick
- Masking tape
- Hot glue gun

How to make your DIY Rainbow Valentine Box
- Get the free download. Download and print the DIY Rainbow Valentine Box template.
- Make the arches. Sketch out the pieces on scratch paper. Then trace onto rigid cardboard and cut out. Approximate size and detail available in the free download. Tape the squares or “feet” of the rainbow to the arches using masking tape.
- Add top and bottom. Cut two strips from the single-face cardboard as wide as the bottom squares. Cut an oval or rectangular mail slot in the strip that will go on top. Attach bottom and top to sides using masking tape.
- Paint or wrap it. To cover up the masking tape, either paint the box white or cover with craft paper (which is what we did).
- Sketch the rainbow. Decide how many colors you want your rainbow to have. Sketch each stripe lightly in pencil to indicate the different colored arches.
- Paint the stripes. Of course you can do a classic rainbow, but feel free to choose your own color palette!
- Add glitter. To add sparkle, make a 50/50 mix of glitter and glue in a small jar or bowl, then swipe it on.
- Make the clouds. Scrunch up little balls of tissue paper, make tissue paper flowers, or glue on pom-poms or cotton balls. Whichever you use, simply hot glue them to each end of the rainbow to create clouds.
Go brighten up the party!
Tip: If you’re using something like a cereal box, cover it with a coat of primer or craft paper before you start painting so the existing print won’t show through your design.

Check out more of our fun DIY valentine box ideas here. Want even more ideas? You know we have ’em:
Shop Valentine's Day
See all-
Regular price $9.99
-
Regular price $7.99
-
Regular price $19.99
-
Regular price $34.99
-
Regular price $16.99
-
Regular price $9.99
-
Regular price $29.99
You may also like
See more-
Quinceañera What is a Quinceañera?
So you’re celebrating a quinceañera! A quinceañera is a big deal for a young woman in Latino culture. It’s not only a...
-
Christmas The history of Christmas and the many ways and reasons we celebrate
Christmas feels timeless and unchanging as a season of celebration, sacredness, connection, gratitude and giving. Y...
-
Calendar Flip Woo-Hoo—summer’s here! June 2025 holidays and celebrations
Summer is here in all her glory and we are ready. Warm days and cool drinks lay ahead. So it’s time to flip the ca...
-
Calendar Flip Yay for May! May 2025 holidays and celebrations
Flowers are blooming, students are graduating and moms are getting some well-deserved appreciation. What a fabulou...
-
Gift Wrapping How to wrap a present: a step-by-step guide with pictures!
In theory, we all know how to wrap a present. You get some wrapping paper, fold it around a box, tape the paper—in...
-
Mother's Day The mother lode of Mother’s Day gift ideas
It’s only natural to want to give the right gift to show the moms in your life how much they mean to you on Mother’s ...
-
Calendar Flip Welcome back, spring! April 2025 holidays and celebrations
Oh, spring, we’ve missed you most of all. We don’t even care that you bring showers—we’re just excited to be outsi...
-
Christmas It’s week two of the 2025 Dream Book SNEAK PEEK!
These Dream Book sneak peeks feel like picking up and shaking Christmas presents as a kid.
What will be in it? Will...
-
Christmas 2025 Keepsake Ornament Sneak Peek: Father Christmas
The Father Christmas Keepsake Ornament is back for its 22nd year in the series! And if this sneak peek is any indicat...
-
Christmas 2025 Keepsake Ornament Sneak Peek: Making Memories
When it comes to cute Christmas classics, there's nothing better than a rolly polly snowman. Unless it's TWO rolly po...
-
Keepsake Ornament Club 10+ ideas and recipes for throwing a Keepsake Ornament party
If you’re anything like us (and we’re pretty sure you are!) then you know ornaments aren’t just a Christmas thing. Wh...
-
Christmas 2025 Keepsake Ornament Sneak Peek: There’s snow business like this one!
A Keepsake Ornament that captures the magic of decked out department store windows during the holiday season? We love...
-
Christmas 2025 Keepsake Ornament Sneak Peek: A stunning tabletop figurine filled with magic
When it comes to inspiring wonder, nothing beats the intricacy of Keepsake Ornaments tabletop figurines. Their light,...
-
Christmas Your first 2025 Dream Book SNEAK PEEK is here!
The debut of the 2025 Dream Book is still a couple months away, but we just can't resist giving you a glimpse of all ...
-
Easter Easter basket ideas for all ages: DIY decorations, gifts and more
Excited to get hopping on those Easter baskets? We love to see it. And we love to inspire it, too! So we’ve put toget...
-
Valentine's Day So many ways to share love with little ones!
From incredibly snuggly, singing plush, to kissing cows, backpack clips and more, we've got everything you need to sh...
-
Easter Quack some smiles this Easter
There's nothing cuter than a fluffy, dancing duck in a spring pastel neck scarf. Well, wait. Actually there IS someth...
-
Kids 50+ unique Tooth Fairy ideas to bring the smiles
Few moments are more magical than your child’s very first wiggly tooth. Sometimes it comes with excitement (what will...
-
Encouragement Simple ways to include children in caregiving
For many people, illness, injury, disability and other reasons for extended care or end-of-life transitioning are jus...
-
Valentine's Day A history of Valentine’s Day: Festivals, feast days, flowers and more
On February 14, kids in classrooms exchange Valentine’s Day candies. Sweethearts celebrate their romance with flowers...