CD hovercraft bottlecap replacement

thingiverse

Create a CD hovercraft using a CD or DVD, glue gun, thick glue, and a sport drink bottle cap attached to a balloon that floats on smooth surfaces like tables. The air cushion provides minimal lift but works well. To save money, print these for students instead of paying high bottle deposit fees. These designs are suitable for smaller balloons or long rocket balloons; increase the size by 20% for larger ones to prevent issues with thin surfaces. Printing support structures can be avoided by creating an angled seam, but it's not too difficult anyway. Improve performance and duration by reducing the hole diameter for better throttling. Unfortunately, the animated GIF linked (http://blog.pixelgiraffe.com/wp-content/uploads/2014/03/gifhoverr4b.gif) may not work; try accessing it directly from the provided link.