Expandable novelty balls that grow up to six times larger over 72 hours when submerged in water. Multi-day gag gift entertainment.
Key Features:
Expands six times original size over 72 hours
Safe expandable polymer material handles dramatic size changes
Multi-day entertainment keeps jokes alive for days
Reusable as stress balls and conversation pieces
Cheeky humor perfect for bachelor parties and gifts
Grow some Balls from MDI Australia is a novelty expandable toy that transforms from small spheres into full-sized entertainment when submerged in water. These polymer balls expand up to six times their original size over 72 hours, creating anticipation and laughs that keep building.
Drop these unassuming spheres into water and watch science take over. The expandable polymer absorbs water gradually, swelling to impressive proportions over three days. The anticipation builds as they grow bigger each day, creating conversation and laughs wherever you place them. For guys who enjoy interactive novelties, check out our anal balls collection for more playful options.
What makes Grow some Balls special is the slow-burn comedy. Instead of a quick laugh and done, you get days of watching them transform into something that definitely grabs attention.
| Gift Type | Best For | What Makes It Different |
|---|---|---|
| Grow some Balls | Friends who need courage | Multi-day entertainment with cheeky humor |
| Standard gag gifts | Quick laughs | One-time joke with limited replay value |
| Party games | Group entertainment | Interactive but requires active participation |
The office jokester: Guys who love desk toys that spark conversations and break the ice during boring meetings. Place them in water and let colleagues watch the daily progress. For more interactive entertainment, explore our bouncy sex balls range.
Party gift buyers: Anyone shopping for bachelor parties, birthdays, or stocking stuffers who wants something memorable that goes beyond the typical novelty item.
This isn't just another throwaway gag gift. The combination of cheeky humor and actual entertainment value means people remember it long after other gifts are forgotten. The slow expansion creates genuine anticipation, and once fully grown, they become conversation pieces that keep the laughs coming. It's the perfect balance of silly and functional. Plus, our range of adjustable cock rings offers more adult-oriented fun for different occasions.
Real experience:
I bought these for my mate's buck's party and they were an instant hit. Watching them slowly expand over the weekend became part of the entertainment. By Sunday, they'd grown to an impressive size that had everyone cracking jokes.
The anticipation was half the fun - checking on them each morning to see how much bigger they'd gotten. Even after the party, they sat on his desk at work, still getting laughs and comments from colleagues who walked by.
Grow some Balls is part of our wider range of novelty adult products. Discover more options in the concealed chastity devices collection to find exactly what you are looking for.
Ready for some expandable entertainment? Order Grow some Balls today from MaleChastity.com.au with discreet shipping Australia-wide. Perfect for upcoming parties or when you need a gift that grows on people.
Malechastity.com.au ships with Australia Post. We ship from Sydney.
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 1-6 business days after shipping, but may subject to any postage carrier related delays beyond our control.
Free standard shipping on orders shipped within Australia above $200. For orders below $200 standard shipping within Australia is $12.95 and will be added at checkout.
Orders addressed to P.O box, G.P.O box or Parcel Collect will be handled by Australia Post. Extra time should be allocated for these orders.
Shipping Transit Times (Including Free Shipping)
Shipping time refers to the estimated time that it will take to deliver your order after it’s ready to ship (Please note this does not include time to process your order). Shipping time does not commence after your order is put through but begins the moment your order has been processed and is ready to dispatch via the our freight carrier..
All in stock orders are generally processed on the same day the order was placed on business days for orders received before 12pm. Generally, orders are processed and shipped the same day or next business day.
Orders are typically received 1-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the nearest depot location.
All orders are generally processed on the same day the order was placed on business days before 12pm.
Generally, orders are processed and shipped the same day or next Business day.
Packages below 2kg are usually received 3-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the local Australia Post depot.
The price for international shipping is AU$12.95 for orders equal to or below 0.399kg (399grams), and AU$22.95 for orders with a total weight equal to or above 0.4kg (400 grams).
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 6-30 business days after shipping.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from your nearest delivery depot.
Please note in regards to all orders
– These expected delivery dates/times are based on carrier shipping practices, your destination, and the items in your order.
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We have a 14 day return policy, which means you have 14 days after receiving your item to request a refund for any defective products.
Returns and exchanges are only available for faulty items, goods not as described, or in some instances, for incorrect sizing.
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Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
We do not accept returns for any products that have change of mind, damaged products, or for products that have been used or do not have their original packaging.
Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 7 business days.
Please remember it can take some time for your bank or credit card company to process and post the refund too.