Send summer out with a fun water balloon fight! Hop on over to Amazon where you can get this 100-count pack of Bunch O Balloons Grenade Rapid-Filling Water Balloons for just $8.57 (reg. $12.95). These highly-rated water balloons can be easily filled and are ready for play in 60 seconds, plus they’re made of 100% recycled plastic. Please remember that prices may change.