HOW TO – Build an Electrostatic Motor
Here’s how to make a very cool motor from a disposable plastic drinking cup, aluminium foil, glue-stick, bamboo or dowel, wire and a non-conducting base, such as a plastic plate or a wooden board. Kiteman writes – “Normal motors are driven by electromagnetic forces. This motor needs no batteries, mains supply or solar cells. Electrostatic motors are turned by the kind of electricity generated by wearing nylon clothes in a modern office. Think of it as gigantic nano-technology as well, because this is how the microscopic motors of nanobots work.” Link.
Good round of motherboard upgrading tips on Extremetech – “…motherboard upgrades can be either difficult or straightforward. It all depends on how you approach it and how you prepare. We’ve upgraded motherboards quite often over the years, so we’ve learned a few lessons along the way. We’d like to share our knowledge, so that when you tackle this, you encounter minimal hassles. Our pain over the years is now your gain.” Thanks Star! 
Not a bad deal for $49. “MIDISpeak Module – Version 2, The Talking Toy MIDI RetrofitAdds a standard MIDI IN port to your Speak & Spell, Speak & Read, or Speak & Math. Non-English versions also supported. Trigger thousands of sounds–words, word fragments, garbled speech, percussion and bizarre sound effects.” 
This look really fun, and really scary, but it’s NERF, so it’s probably OK. “The FAR is a magazine fed spring powered rifle capable of firing Nerf darts in rapid succession. It uses a fast-action bolt system. This means that all that needs to be done to cycle the weapon is to rack the bolt back and release. The rifle is fed by a bottom feed detachable magazine that holds 5 rounds. The design of the FAR permits it to be fully disassembled and all components accessed for repair or replacement. Only a philips head screwdriver and a pair of hands are required for field stripping.” [
Rheslip made his own CNC machine – “I looked at a bunch of designs and decided to try a fairly simple 3 axis machine as my first effort. The idea was to use a Dremel tool for the cutting head and use the machine to engrave aluminum front panels for my guitar amps. As it turned out the machine isn’t accurate or rigid enough for that. A dremel just has too much slop in the bearings for accurate machining. The machine will do a reasonable job machining soft materials like plastic and soft woods, and it does quite a good job of plotting PCBs. I haven’t tried drilling PCBs yet but I’m pretty sure it’ll handle that too.” Thanks Star!