A water balloon or water bomb is a balloon, often made of latex rubber, filled with water. Water balloons are used in a summer pastime of cooling off through water balloon fights. Water balloons are also popular for celebrations, including celebrating Holi and Carnival in India, Nepal, and several other countries. Nepali Times
Another form of water bomb is a sheet of paper origami to form a container capable of holding water.[2] Origami These are then filled and used in a similar way to latex versions.
Gas balloons (air or helium types) may be used as water balloons, but are not typically preferred because the balloon wall thickness is different. A water balloon is designed to be filled up to the approximate size of a baseball in a pear shape (so as to be thrown more easily), whereas some gas balloons, when filled with water, may reach the size of a basketball; this is disadvantageous because those balloons are harder to handle, usually requiring two hands. Mainly for safety reasons, water balloon walls are designed to be thick enough to be held without bursting yet thin enough to burst upon impact.
In a similar process to gas balloons, water balloons may be molded into various shapes at manufacturing. One process involves a patented mandrel for making elastomeric articles.US Patent 4943225
Reusable water balloons are an alternative to the traditional single use balloons. These minimize environmental impact and clean up and tend to be easier and more efficient to fill. However, they are typically more expensive than rubber balloons. There are a multitude of types, including magnetically locking spheres and absorbent fabric balls.
Homemade water balloon filling stations may incorporate water balloon nozzles or valves that are on the market or use common plumbing fixtures. These stations may have one or more nozzles or valves. Portable and fixed station designs each have distinct pros and cons depending on the location of use, number of system users, and the quantity of filled water balloons needed. Multi-nozzle stations not only enable more water balloons to be filled for adults planning upcoming youth events or for preventing boredom in children upset with how challenging it may be to fill a balloon at a hose spigot, but greatly enhance group social interactions which is very important in toys for children and adult volunteers that work with children.
Multiple toy companies have created balloon tying and filling devices, enabling the user to easily fill and tie water balloons.
It is unsafe to misuse a water balloon launcher by loading it with snowballs. Water balloon launchers pose a risk of eye injuries, such as when a young man suffered orbital blowout fracture resulting from the misuse of a water balloon launcher, and became legally blind from his left eye. In another case, a 31-year-old female suffered from traumatic retinal dialysis in her right eye, resulting in permanent loss of vision.
The Wii video game Ennichi no Tatsujin includes a virtual Yo-yo Tsuri game.
| Coogee, New South Wales, Australia | April, 2006 | 3,000 | 55,000 | Video of fight |
| University of Kentucky Christian Student Fellowship | August, 2008 | 2,744 | 58,000 | Video of fight |
| Brigham Young University | July, 2010 | 3,927 | 120,000 | Video of fight |
| University of Kentucky Christian Student Fellowship | August, 2011 | 8,957 | 175,141 |
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| University of Kentucky Christian Student Fellowship | August, 2012 | 11,622 | 236,484 | Video of fight |
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