Dave from the EEVblog checks out the Sydney Mini Maker Faire which was held at the power house museum. Quite a few 3D printers and robots driving around.
At 5:45 there is a guy who does a brain wave scan of people, combines it with weather data and 3D prints a design that combines the two.
At 8:30 you can see some rockets on display outside and a demonstration of a rocket motor being fired (no rocket flights though).
At 10:23 there is an interesting home made segway driven around by a guy with an LED tie.
At 11:30 there is an impressive DIY electric vehicle. It has an interesting display that shows the individual battery voltages