Snow Ball Maker
In a snowball fight, accuracy is not everything as you also need to have an abundant amount of ammunition to wear down the opposing team. With the Sno-Baller, things could turn the tide in your favor pretty soon.
The Sno-Baller turns out huge numbers of snowballs in seconds, so gloves stay drier and hands warmer, and you can fire away without running out — crucial in family and neighborhood snowball fights! Snow Block Maker forms perfect-sized chunks for snow forts and walls, and also works in sand at the beach. Injection-molded high-impact plastic.
Strangely enough, the product page can’t seem to load at the moment. Still, this sounds like an unfair advantage if you happen to indulge yourself in snowball fights.
Source: Funniest Gadgets