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How to Make Water Sponge Bombs for Kids

Say goodbye to plastic and have a water balloon fight with these reusable Sponge Bombs instead. This 5 minute DIY project is a fun way to cool down on a hot summer’s day, while also giving your kids a chance to burn off some of their excess energy.

If you want to make your Summer themed lessons a breeze, then check out the Summer Activity Pack. It’s filled with math and literacy centers, fine motor activities and arts and crafts templates. All of which are aligned with preschool learning standards. Check it out today.

Disclosure: Adult supervision is required for all activities at all times. Some of the links provided in this blog are affiliate links. I will be paid a commission if you use this link to make a purchase.

More DIY Summer Projects to try

There’s no better way to spend time this summer, than on some of these super simple DIY projects. Each of these fun ideas has an easy tutorial for you to follow, and is guaranteed to give you plenty of family fun.

  1. DIY Splash Pad (30 Minute Project)
  2. How to Make a DIY Mud Kitchen in 5 Minutes
  3. How to make a DIY Pirate Ship – STEM Challenge for Kids
  4. DIY Water Wall
  5. DIY Slip-and-Slide

Materials Needed

  1. Kitchen Sponges (At least 2 per sponge bomb)
  2. Scissors
  3. Rubber band
  4. Buckets of water

How to Make DIY Sponge Water Bombs

1. Cut the kitchen sponges into strips.

Take your kitchen sponges and cut them, long ways into strips. I decided to do 4 equal strips, but you can do more or less, depending on what you feel like.

2. Lay two sponges on top of the other.

Stack two sponges on top of each other. I like picking two different colors but you don’t have to.

Once again, you can add more sponges to your sponge balls if you like. However I found that 2 worked perfectly for me.

3. Grab the strips in the center, and tie elastic bands around the middle.

You can use whatever you have on hand to tie all of the strips of sponges together. I used a rubber band, but you can also try:

  1. zip ties
  2. a piece of string or a piece of twine (just cut the excess string off)
  3. hair elastic

4. Spread the pieces out.

How to Play

Classic Water Fight

Use these sponge bombs instead of water balloons. You can have a great water fight on a hot summer day and not have to worry about single use plastic. It’s amazing how much fun the whole family can have with just a few sponge pieces and a bucket of water.

Hit the Target

Set up a target and see if you can use a wet sponge to hit the center. The best part is that this sponge bomb game can be adjusted in so many different ways. Hopefully your kids will have endless hours of fun the next time you have a hot day.

Water Transfer Obstacle Course

Create a series of water play challenges and get ready for some summer fun. Ideas you can try include:

  1. Play a water version of hot potato
  2. Hang them from a fishing line to make water sponge pinatas or
  3. See you can transfer the water from one bucket to the other using only their own sponge water bombs.

If you’re still looking for a fun way to cool down on a hot day, take a look at these 45 Awesome Water Activities for Kids.

What You’re Learning

Gross Motor Skills

When you look at these colorful sponge bombs, you probably see a whole lot of fun, and not necessarily any learning. These sponge bombs are a great way to let off some excess energy, and help kids develop gross motor skills at the same time. For example, aiming, throwing and dodging these water balls will help children to develop:

  1. Upper body strength
  2. Hand-eye coordination
  3. Balance

Summer Activity pack for preschool and kindergarten. Printable Summer themed literacy, math, fine motor, games and art templates.

Summer Activity Pack

Get over 80+ pages of Summer themed play based learning activities and craft templates. Perfect for preschool and kindergarten.


Are you going to make these DIY Sponge Bombs for your kids?
Don’t forget to pin the idea for later.

More Play Based Learning for Kids