Last Updated: Oct 15, 2021 @ 1:07 pm.

What are the best rainbow-themed party decorations? To find out, we tried out several major brands to find the ones that looked the best. Which make the best backdrop for pictures? What about rainbow decorations in more pastel hues? Here are the ones we'd recommend.

FYI: We've been reviewing and rating products for the home and families since 1994. To keep things independent, we don't take money or freebies from brands we review! Our work is 100% reader-supported!

The Best Rainbow Party Decorations: Our Take

When it comes to rainbow-themed party decor, there are two basic choices: primary colors or pastels.

When we tried out several packs of party decorations to find the best bets, we noticed that some rainbow party decorations are designed more as backdrops—that’s great for photos. Other packs were more general decor (pom poms, banners, etc).

As always, the key question is: how cute do these decorations look? And how easy are they to assemble? 

Here are the ones we’d recommend: 

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Best Streamers + Balloons

Great backdrop for photos!
We loved these colorful streamers plus 50 white balloons—with one caveat: you may need to trim the streamers so they are the same length! Great for a birthday party!

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Best For Birthday Parties

Easy to assemble
Colorful pom poms and a bright banner made of felt are the highlights of this package—great bang for the buck! Simply adorable.

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Best Pastel Rainbow Set

Super cute—and budget-friendly!
If you're planning a unicorn-themed birthday party, this decor pack is the ticket—we loved the pastel hued balloons. And yes, there are cake toppers and a bright happy birthday banner. Perfect!

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Why Trust Us

We’ve been rating and reviewing products for the home and families since 1994. We do extensive research, evaluating products with an eye toward quality, ease of use and affordability. When we purchase a product for hands-on testing, we do so with our own money. 

Here’s another key point: we don’t take money from the brands we review. No free samples, no sponsors, no “partnerships.” Our work is 100% reader-supported!

Baby Bargains: Your Baby Registry Cheat Sheet is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to and its related sites. As an Amazon Associate, I earn from qualifying purchases.