🚀 go-pugleaf

If you don't mind making the system A) bigger and B) louder, you could try
using simple lawn mower engines.  I remember hearing that they have sufficient
power/weight ratios to lift themselves and a bit of control equipment so that
if you put three in a triangle layout you will get yourself a small
hovercraft.  Of course, this would probably have to be used outside, but that
could just make it more interesting.

+---------< Eric A. Rasmussen - Mr. Neat-O (tm) >---------+ +< Email Address >+
|   A real engineer never reads the instructions first.   | | ear@wpi.wpi.edu |
|   (They figure out how it works by playing with it.)    | | ear%wpi@wpi.edu |
+---------------------------------------------------------+ +-----------------+
                     ((( In Stereo Where Available )))