Only a few things are more interesting to kids than toys that grow in water. These expandable water toys get bigger after you leave them in water for some time. Available mostly in the form of animals, these toys can expand to as much as 8 times their size when left in water for hours. However, the rate of expansion varies from one model to another.

best toys that grow in water

In this post, we’d be reviewing some of the best expandable water toys that will wow your kids.

Toys That Grow in Water: Our Top 6 Picks

Choosing the right expandable water toy can be confusing given the tons of options available on the market. But to help you make a well-informed buying decision, we’d scoured the market for the best models and compared them in terms of design, durability, and buyer reviews. And here are the ones we strongly recommend.

1. GoodyKing Magnetic Fishing Game Pool Toys for Kids


There is so much to like about the GoodyKing Magnetic Fishing Game Pool Toys for Kids. What we probably love most is the number of creatures that this collection contains. Beyond this, it possesses several qualities that make it worth investing in.

With the GoodyKing Magnetic Fishing Game Pool Toys for Kids, you can kill two birds with one stone. You can help your kids to have loads of fun while teaching them to be competitive as well. This toy set comes with four rods and four nets, so it is suitable for up to four players. What this means is that your kids can have their friends over and enjoy the toy set while you engage in other activities.

Each element of this toy set comes in an ergonomic design. This makes it easy for your kids to handle each of the toys with ease. You can give this toy set to your kids as a birthday gift during Thanksgiving and Christmas as well. Most parents love this toy set because it keeps their kids engaged for long periods.

The GoodyKing Magnetic Fishing Game Pool Toys for Kids has a very sturdy and durable construction. As such, you don’t have to worry about buying a new toy set too soon. It contains a total of 40 different sea creatures. You can work with your kids to teach them the names of each creature while playing.

Another important advantage of this toy set is that it helps to build the motor skills of your kids. Putting the package away after use is easy because it comes with a drawstring bag that can accommodate all the pieces. This also means that you can move the whole set around easily, especially when going for picnics and holiday trips.

The components of the toy set are all waterproof, so your kids can use them in bathtubs and water tables. Overall, the GoodyKing Magnetic Fishing Game Pool Toys for Kids is a great investment to keep your kids busy.


  • It contains 40 sea creatures
  • Educational and exciting
  • Drawstring bag for easy movement
  • Ergonomic design
  • Sturdy and durable pieces
  • Builds motor skills


  • None that we could figure

2. iGeeKid 60 Pack Dinosaur Eggs Toys


The iGeeKid 60 Pack Dinosaur Eggs Toys is one fun way to keep your kids engaged for long periods of time. It is one of the easiest toys to use. All your kids need to do is to drop the toys in water and watch them hatch and grow.

While the idea is interesting, it takes a while for the eggs to hatch, about 12 hours. That may be too long for your kids to remain watching. However, they can leave the toys in the water overnight and see the transformation at daybreak. But on a day that you are free, you can enjoy the fun coupled with other activities with your kids.

Just as the name implies, this pack comes with 60 pieces; that’s more than enough to engage your kids. You can seize the opportunity to explain the science of the hatching process and fire up their curiosity. It will also help you to teach your kids some patience and the joy of achieving results.

All the elements of the toy set are made from natural rubber and they are covered with healthy paint. As such, the toys do not produce any unhealthy fumes and they are completely free from toxic substances. Kids from age 3 upwards can play with these toys but a little supervision is required for younger kids.


  • Made from natural rubber
  • Durable toy set
  • 60 pieces of eggs
  • Affordable


  • Eggs take long to hatch

3. Ipidipi Toys Water Growing Sea Creatures Animals


The Ipidipi Toys Water Growing Sea Creatures Animals collection contains 32 different sea creatures. This toy helps teach your kids several lessons while helping them to have fun at the same time. It comes in several styles and colors that will intrigue your kids and keep them engaged for long periods.

All you need to do is to add water then stand back. You and your kids can have fun watching the creatures expand to about 300% of their original size. After they expand, your kids can proceed to play with the toys indoors or outdoors. To add to the fun, you can work with your kids to make an underwater aquarium.

The toys are made from BPA-free and latex-free materials. These materials pose no threats to your kids while they play. However, you should supervise younger kids so that they don’t swallow the toys. One of the most attractive features of this toy set is the packaging. It is very attractive and accommodates the toy set efficiently.

Also, the Ipidipi Toys Water Growing Sea Creatures Animals comes with a money-back warranty. This comes in handy if you and your kids are not satisfied with the package. The customer service is great as well.


  • Easy to use
  • Made from BPA-free and latex-free materials
  • Attractive and efficient packaging
  • Educational toy set
  • Toys expand quickly


  • None

4. Gejoy 8 Packs Magic Grow Capsules


The Gejoy 8 Packs Magic Grow Capsules is quite exceptional and different from every other item on this list. It gives you eight different packs with four different themes. What this means is that, two packs each come with a single theme. The themes include farm animals, dinosaur, sea, and zoo.

To take it further, each pack contains 12 different capsules, so that is 48 capsules in all. That’s more than enough to keep your kids captivated for the whole day. All the capsules grow in water magically, just like the other toy sets on this list. Simply drop them in warm water and you and your kids can watch them expand.

For younger kids, there should be some form of supervision. You can use this collection for several occasions and events. It is important to note that these toys are inedible so they shouldn’t be put in the mouth. The collection is suitable for kids that are 12-years-old or older. While the Gejoy 8 Packs Magic Grow Capsules is a great toy, you need warm water to notice growth.


  • Very affordable
  • Durable collection
  • A variety of themes
  • A large collection of capsules


  • Needs hot water to expand or grow

5. Magic Grow Snake Toy


One glance at the Magic Grow Snake Toy and you may not be impressed. The package contains two snakes that seem very small. However, dropping them into water grows them magically to about 48 inches.

The collection also contains a collectible bouncy ball. One of the advantages of this toy is that it looks very realistic since so much attention was paid to its manufacture. It is also great for kids of all ages, including adults. You can make use of this toy for several purposes such as birthday parties and kids hangouts.

The only challenge is that it takes a very long time for the snakes to expand to their full capacity. This may not be favorable if you need to use the toy set urgently. Nonetheless, the snake keeps growing in the water so your kids can learn some patience as they watch. It is also not reusable.


  • Snakes grow very long, about 600% of their original height
  • Made from durable materials
  • Lots of attention to detail to create a realistic experience


  • Takes long to grow, about 4 days
  • It isn’t reusable

6. Toysmith Ginormous Grow Shark, Crocodile & Lizard Gift Set Bundle


There are three animals in the Toysmith Ginormous toy set. It contains a shark, lizard, and crocodile. Each of these toys comes in a different color, which adds to the fun of using the toy set.

Drop the toys in water and they end up growing to six times their original size. The growth process runs for about three days. So depending on your purposes, this may be favorable or too long. If you need a toy for quick results, you may want to look elsewhere. However, this toy is great to teach your kids patience and improve their observatory skills.

Unlike many grow-in-water toys, the toys in this package are reusable. What this means is that when you are done playing, you can take them out of the water and use them again. That should be quite interesting for your kids. This toy set was designed with quality, non-toxic materials. It can be used by kids from age 5 upward.

The toys are very easy to use and they are very durable. Overall, the Toysmith Ginormous Grow Gift Set bundle is not a bad investment.


  • Reusable toy set
  • Attractive and realistic design
  • Designed from non-toxic materials
  • Durable toy set


  • Takes a long period of time to expand
  • Toys don’t grow as large as expected


About the Author Tom Brewer

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