Aquapod
If you have an empty soda bottle and a bicycle pump laying around, all you need is the Aquapod for hours of high-flying fun. Just add water to your bottle, attach it to the Aquapod, give it a few pumps, and stand back. With a yank of the lanyard, watch your bottle rocket up to 100 feet in the air, spewing water all the way as it blasts through the sky.
