Hover Disk
I present to you a functional balloon powered hover disk!

Do you remember making a hovercraft out of CDs as a kid? Here is the future! This is a balloon powered hovercraft that works just like the CD version. Hovers for over a minute!

Technology
This hover craft includes a 20mm air inlet on the top for a latex party balloon. This air runs through a 2.5mm nozzle to create an aerostatic bearing that significantly reduces sliding friction.