Breath powered USB charger

http://www.instructables.com/id/EE9ZG6JF1OABQAQ/?ALLSTEPS

Waterproof your electronics Navy SEAL-style

The Hole - video powered by Metacafe Source

Poor Man's WiFi

http://www.usbwifi.orcon.net.nz

mirror http://www.exe64.com/mirror/wokfi/ (Italy)

Make 2.4GHz parabolic mesh dishes from cheap but sturdy Chinese cookware scoops & a USB WiFi adaptor ! The largest (300mm diam) shows 12-15dB gain (enough for a LOS range extension to 3-5km), costs ~US$5 & comes with a user friendly bamboo handle that suits WLAN fieldwork- if you can handle the curious stares!

pico: Quite possibly the world's smallest robot (DIY)

TODO: build one ASAP!!! LINK