Make your own sponge water bombs with a few inexpensive supplies. A fun DIY project that keeps kids cool and entertained all summer long.

If you're looking for an easy way to keep kids entertained this summer, sponge water bombs are always a hit.
They are soft, reusable, and perfect for backyard games, trips to the lake, or afternoons by the pool.
Unlike water balloons, there are no tiny pieces to pick up afterward, which is a win for both parents and the yard.
Best of all, they are inexpensive to make and can provide hours of fun for little kids and big kids alike.
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Skill Level: Beginner
Estimated Cost: $5-$10
Total Time: 15-20 Minutes
Craft Tutorial Video
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Supply List

What Kind of Sponges Should You Use?
Not all sponges work well for this project. Skip any sponge that has a rough scrubbing pad attached, since those can make cutting more difficult and don't work as well for sponge water bombs.
For this craft, the inexpensive sponges are actually the best choice. There is no need to spend extra money on name-brand sponges because they all work about the same once they are cut and assembled.
I used compressed sponges, which are pretty neat. They come packaged flat, so you can fit a lot of them into a small box. Once they get wet, they expand into full-size kitchen sponges.

They were affordable, easy to store, and worked perfectly for making sponge water bombs.
Instructions
Begin by cutting each sponge into three strips. You can cut them when they are dry and flat or wet them first.

Group six sponge strips together and wrap with a zip tie.

Tighten the zip tie, and you will see the ball shape form.
If your sponge ball looks uneven at first, fluff the strips with your hands after tightening the zip tie. This helps create a fuller pom-pom shape.
Trim the end of the zip tie as closely to the ball as possible. This makes the finished sponge ball more comfortable to hold and throw.

And wallah! You have a sponge ball! Super easy, right?

Storage Tips
After playing, squeeze out excess water and allow the sponge water bombs to dry completely.
Storing them dry helps prevent mildew and keeps them ready for the next water fight.

Why You'll Love Sponge Water Bombs
One of my favorite things about sponge water bombs is how simple they are.
They can be used over and over again, making them a budget-friendly alternative to traditional water balloons.
They are also much softer than water balloons, which makes them great for younger children.
Just toss them into a bucket of water, give them a squeeze, and they are ready for action.
Fun Ways to Use Sponge Water Bombs
These are perfect for a classic water balloon fight without all the cleanup.
Fill a bucket of water and let everyone reload between rounds. You can also use them for relay races, target games, poolside activities, or backyard obstacle courses.
We have even used them indoors without water as soft tossing toys instead of beanbags.
Frequently Asked Questions
The number depends on the size and quantity of sponges you purchase. Since each sponge is cut into strips, a package of sponges goes much further than you might expect.
Yes. Because they are soft and lightweight, they are generally a safer option than traditional water balloons. Adult supervision is still recommended during play.
Yes, rubber bands can work, but zip ties tend to hold the strips more securely over time.
With proper care, they can last through many summer play sessions. Simply let them dry completely before storing.
Need help with this project?
Click a button below to ask AI for some fun games to play with sponge water bombs.
More Outside Play Ideas
Looking for more ways to keep the kids active and entertained outdoors? Here are a few more fun ideas for backyard play, summer parties, and family activities.

Hi, I'm Katie!
I'm so glad you're here. Want to make something fabulous? I'm here to help!







cookieandclaire
These are too cute! I can see some fun games in our plastic pool with these! Thank you for sharing it!
LrSchwtz
Thanks for this fun idea! Please stop by http://www.laughloveandcraft.com and link up to my Share the Wealth Wednesday Link Party! I'm your newest follower!
Kim @ Cheap Chic Home
These are so cute -- I don't have little ones anymore, but sure would love an excuse to make some.
Ginger
tons o fun! Thanks for linking up to Mad Skills Monday!
Terry
This is such a clever idea. Definitely pinning these. Thanks for sharing at our party this week.
Melanie @ bear rabbit bear
Very clever for the pool or bathtub! Thanks for linking to Things I've Done Thursday!
Michelles Tasty Creations
Love these! I think I would just sit in hiding and throw them at my kids! Now, before everyone get all huffy, my kids are 16 & 17 and they can handle it! lol Actually this would be super fun when we are boating too because they float. Thanks for sharing 🙂
Michelle
Rachel
What a fun, quick and cheap craft. I'll have to look for sponges next time I'm at the dollar store. Thanks for sharing at Terrific Tuesdays. Rachel