The 'Pyro Mini' is a battery powered flamethrower that mounts on your wrists…
Arduino-based Burglar and Fire Alarm System
ArduCAM for ESP8266 websocket camera demonstration
Printerbot. Nice clean design for the gondola.
What I really want, water cooling system
Estufa de madera DIY hecho de llantas llantas ----------- DIY Wood Stove made from Tire Rims - iSaveA2Z.com
21 Amazing DIY Greenhouses with Great Tutorials
Edge-lit LED Nixie Tube Style Display - by Jürgen Grau on Hack a day (source)