How to Make Reusable Sponge Water Bombs

Need a fun way to cool off this summer? Learn how to make reusable sponge water bombs! They are inexpensive and easy to make. Plus, the kids will love playing with them.

It’s summer, it’s hot and the kids need entertaining! Enter these fun, reusable Water Bombs made from cheap sponges. It’s such a great kids activity for summer and these reusable sponge balls provide endless hours of fun on a hot summer day.

When the days are hot and long this summer break, sponge water bombs are a great activity to keep the kids cool and happy. These DIY sponge water bombs are great for water play in the yard or in the pool. Kids can make multi-colored water bombs or keep track of their own sponge water bombs with one specific color.

All you do is turn inexpensive kitchen sponges into a water toy, dunk them in water and let them have a blast. They are perfect for a water balloon fight, without the tricky task of filling balloons or cleaning up tiny pieces. These are much better for the environment, too because you can reuse them over and over again.

Why You’ll Love Sponge Water Bombs

• In only 10 minutes, the kids will be out enjoying these reusable water balloons!
• You only need three supplies to make these for summer fun all season long.
• You’ll have a fun water bomb for the kids that can be used again and again.

Supplies Needed

• Multi-purpose sponges
• Rubber bands
• Scissors
• Water bucket

Where can I find multi-purpose sponges?

I found mine at Walmart, but you can get them easily at Target or on Amazon. If you get this large pack, you will have enough to make 20 water bombs which would be great for many kids. Just make sure you are buying cheap sponges that don’t have a scrubbing side, or it will hurt to get hit by them!

Can I use a regular hair elastic?

In a pinch, you can, but I recommend sticking to rubber bands because they won’t lose their stretch like a hair elastic can.

I definitely do not recommend using zip ties because the plastic can really hurt somebody.

How to Make Homemade Sponge Water Bombs

The first thing you need to do is cut each sponge into four equal strips.

Then take four strips of the sponges, we did different colors, and stack them on top of another layer of four strips.

Squeeze the group of sponges together by the middle and wrap a rubber band around the middle. Make sure they are very tight to prevent them from falling apart.

Gently pull and twist the ends of the sponge pieces to form a ball shape.

Place the water bombs into a large bucket of water and have fun tossing them at each other!

Play a game!

One idea other than just throwing these at each other is to play a game! We invented a fun toss game. Use sidewalk chalk to draw a big bullseye with multiple circles and high points as you get to the center.

Draw a line to stand behind. Toss the wet sponges at the bullseye and see how many points you can get!

How do I store these?

Make sure you squeeze the sponges out completely, then leave them in a sunny spot to dry. Once they are dried out, you can store them in a laundry bag with holes in it if they are not completely dry, so they will not mold.

How long will these last?

This is hard to judge because it all depends on how they are handled. They are sturdy, but they will not last long if they are getting pulled on or torn apart. My kids have had theirs for a few months now, and I feel they will last all summer long. You have to make sure they are put away dry, or they will start to stink.

The kids are going to love these sponge bombs! They are so quick and easy to make and offer hours of water fun to make the best summer memories.

Our Favorite Kids Activities!

• Turn your leftover, broken sidewalk chalk into this fun Sidewalk Chalk Paint! 
• Did you know you can make Oobleck with only two ingredients? It’s so much fun to play with and easier to make than slime! 
• Making your own Homemade Playdough is so easy plus it’s cheap! The best is that it will last up to three months when it’s stored correctly.

If you take a picture using these Water Bombs and share them on Instagram make sure to #kidsactivityzone or tag us @kidsactivityzoneblog so we can see them!